79491300912 has 80 divisors (see below), whose sum is σ = 228237043680. Its totient is φ = 26489253888.

The previous prime is 79491300857. The next prime is 79491300913. The reversal of 79491300912 is 21900319497.

79491300912 is a `hidden beast` number, since 79 + 491 + 3 + 0 + 0 + 91 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (79491300913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537108 + ... + 1587980.

It is an arithmetic number, because the mean of its divisors is an integer number (2852963046).

Almost surely, 2^79491300912 is an apocalyptic number.

79491300912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

79491300912 is an abundant number, since it is smaller than the sum of its proper divisors (148745742768).

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

79491300912 is a wasteful number, since it uses less digits than its factorization.

79491300912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54507 (or 54495 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 79491300912 in words is "seventy-nine billion, four hundred ninety-one million, three hundred thousand, nine hundred twelve".