79120991712 has 48 divisors (see below), whose sum is σ = 237362977152. Its totient is φ = 22605997440.

The previous prime is 79120991701. The next prime is 79120991759. The reversal of 79120991712 is 21719902197.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58869114 + ... + 58870457.

It is an arithmetic number, because the mean of its divisors is an integer number (4945062024).

Almost surely, 2^79120991712 is an apocalyptic number.

It is an amenable number.

79120991712 is an abundant number, since it is smaller than the sum of its proper divisors (158241985440).

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

79120991712 is a wasteful number, since it uses less digits than its factorization.

79120991712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117739591 (or 117739583 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 48.

The spelling of 79120991712 in words is "seventy-nine billion, one hundred twenty million, nine hundred ninety-one thousand, seven hundred twelve".