The name Bigthan in Hebrew letters is בגתן. Below: how its number adds up, which page of the Torah it falls on and what verse stands there. Everything is computed, nothing is guessed.
בגתן
In short
Your name in Hebrew letters is בגתן. A Tanakh name: a eunuch of Xerxes (first in Esther 2:21; 2 mentions in the Tanakh). Adding up the numbers of its letters gives 455 — the same as the Torah word פוטיפרע, “Potiphera, priest of On”. That number points to Torah page 101 of 354 — in the portion Vaera. What that portion is about: “And I appeared”: the promise of redemption in four expressions; the first seven plagues, from blood to hail. The verse that begins with the first letter of your name and ends with the last is Genesis 35:23. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Bigthan” — this exact spelling is what was calculated: בגתן. A name from the Tanakh — its Tanakh spelling is used. If your name is spelled differently, correct the Hebrew spelling and the report is recomputed.
Adding up the letters of the name בגתן gives 455.
455
The number 455 is the Torah word פוטיפרע — «Potiphera, priest of On» (Genesis 41:45).
These are that Aaron and Moses, to whom HaShem said: 'Bring out the children of Israel from the land of Egypt according to their hosts.'
This is from the portion Vaera. What it is about: “And I appeared”: the promise of redemption in four expressions; the first seven plagues, from blood to hail.
Other ways of counting
The tradition counts the same name in several ways. The main one is above: each letter is its number. The other eight are old and checkable too; each gives its own number, and many of them have a Torah word with the same number.
Final letters as 500–900 (mispar gadol) — 1105.
Reduced, each letter to one digit (mispar katan) — 14. A Torah word with the same number is יד — “hand” (Genesis 3:22).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 41. A Torah word with the same number is אם — “if” (Genesis 4:7).
Cumulative: a letter plus all letters before it (mispar kidmi) — 1699.
Squares of the letter values (mispar perati) — 162513.
Building: the sum grows with each letter (mispar bone’eh) — 867.
The letters that come out are שראט — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 510. A Torah word with the same number is ירש — “to inherit, possess” (Genesis 15:3).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 1007.
The number 455 appears in the classical books 12 times across 8 works. The earliest mention is בעל הטורים על התורה (~1300).
Every letter of the name explained, the words and namesakes with references, the Hebrew date, the letter and tribe of the month, day 861 of your life (±1), the psalm by age, the attestations from the classical books — a PDF sent to your email.
The number of the day, every morning
Every date has a number too. Once a year it will match the number of your name — 455. The channel posts one number a day, one verse and the Torah page it lands on. Nothing after it, no mailing list.
Hebrew is written from right to left. בגתן has 4 letters: ב Bet, ג Gimel, ת Tav, ן final Nun. The first letter is Bet, the last is final Nun.
For an engraving, a sign or a tattoo, show the spelling to someone who reads Hebrew: transliterating a name is a choice, not the only option.
The name בגתן does not stand as a word in the Pentateuch — as with most names, including many Tanakh names from the later books.
The verse of your name
There is a custom: at the end of the prayer one says a Torah verse that begins with the first letter of one's name and ends with its last. For בגתן these are ב and נ. The Pentateuch has 9 such verses. The first of them is Genesis 35:23:
בני לאה בכור יעקב ראובן ושמעון ולוי ויהודה ויששכר וזבולן
This is from the portion Vayishlach. What it is about: Wrestling with the angel and the name Israel; the meeting with Esau; Dinah in Shechem; the birth of Benjamin and Rachel's death.
Each Hebrew letter has a number; a word's number is their sum (alef 1 … tav 400). The page is the remainder modulo 354: the Torah divided into 354 pages of 861 letters, as the lunar year has 354 days. Everything can be checked by hand.