SEPTILLION
septillion
(noun) the number that is represented as a one followed by 24 zeros
Source: WordNet® 3.1
Etymology
Numeral
septillion
(US, modern British & Australian, short scale) A trillion trillion: 1 followed by 24 zeros, 1024.
(dated British & Australian, long scale) A billion quintillion: 1 followed by 42 zeros, 1042.
Synonyms
• (1024): a long scale quadrillion
• (1042): a short scale tredecillion
Anagrams
• pointillés
Source: Wiktionary
Sep*til"lion, n. Etym: [F. septilion, formed fr. L. septem seven, in
imitation of million.]
Definition: According to the French method of numeration (which is followed
also in the United States), the number expressed by a unit with
twenty-four ciphers annexed. According to the English method, the
number expressed by a unit with forty-two ciphers annexed. See
Numeration.
Source: Webster’s Unabridged Dictionary 1913 Edition