79912767888 has 120 divisors (see below), whose sum is σ = 242087704800. Its totient is φ = 25235561664.

The previous prime is 79912767881. The next prime is 79912767889. The reversal of 79912767888 is 88876721997.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (79912767881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100258 + ... + 412161.

It is an arithmetic number, because the mean of its divisors is an integer number (2017397540).

Almost surely, 2^79912767888 is an apocalyptic number.

It is an amenable number.

79912767888 is an abundant number, since it is smaller than the sum of its proper divisors (162174936912).

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

79912767888 is a wasteful number, since it uses less digits than its factorization.

79912767888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512474 (or 512443 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 72.

The spelling of 79912767888 in words is "seventy-nine billion, nine hundred twelve million, seven hundred sixty-seven thousand, eight hundred eighty-eight".