99756979233492 has 24 divisors (see below), whose sum is σ = 266018611289536. Its totient is φ = 28501994066688.

The previous prime is 99756979233481. The next prime is 99756979233493. The reversal of 99756979233492 is 29433297965799.

It is a Harshad number since it is a multiple of its sum of digits (84), and also a Moran number because the ratio is a prime number: 1187583086113 = 99756979233492 / (9 + 9 + 7 + 5 + 6 + 9 + 7 + 9 + 2 + 3 + 3 + 4 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99756979233493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593791542973 + ... + 593791543140.

Almost surely, 2^{99756979233492} is an apocalyptic number.

It is an amenable number.

99756979233492 is an abundant number, since it is smaller than the sum of its proper divisors (166261632056044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99756979233492 is a wasteful number, since it uses less digits than its factorization.

99756979233492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187583086127 (or 1187583086125 counting only the distinct ones).

The product of its digits is 12499492320, while the sum is 84.

The spelling of 99756979233492 in words is "ninety-nine trillion, seven hundred fifty-six billion, nine hundred seventy-nine million, two hundred thirty-three thousand, four hundred ninety-two".