79515314720 has 192 divisors, whose sum is σ = 200069606016. Its totient is φ = 29820395520.

The previous prime is 79515314699. The next prime is 79515314789. The reversal of 79515314720 is 2741351597.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20143787 + ... + 20147733.

It is an arithmetic number, because the mean of its divisors is an integer number (1042029198).

Almost surely, 2^79515314720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79515314720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100034803008).

79515314720 is an abundant number, since it is smaller than the sum of its proper divisors (120554291296).

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

79515314720 is a wasteful number, since it uses less digits than its factorization.

79515314720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123 (or 4115 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 79515314720 in words is "seventy-nine billion, five hundred fifteen million, three hundred fourteen thousand, seven hundred twenty".