79514517912 has 64 divisors (see below), whose sum is σ = 205700968800. Its totient is φ = 25583416320.

The previous prime is 79514517899. The next prime is 79514517923. The reversal of 79514517912 is 21971541597.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2686458 + ... + 2715894.

Almost surely, 2^79514517912 is an apocalyptic number.

It is an amenable number.

79514517912 is an abundant number, since it is smaller than the sum of its proper divisors (126186450888).

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

79514517912 is a wasteful number, since it uses less digits than its factorization.

79514517912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33356 (or 33352 counting only the distinct ones).

The product of its digits is 793800, while the sum is 51.

The spelling of 79514517912 in words is "seventy-nine billion, five hundred fourteen million, five hundred seventeen thousand, nine hundred twelve".