79731726116 has 60 divisors (see below), whose sum is σ = 163155336960. Its totient is φ = 34091099280.

The previous prime is 79731726071. The next prime is 79731726157. The reversal of 79731726116 is 61162713797.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4206701 + ... + 4225611.

It is an arithmetic number, because the mean of its divisors is an integer number (2719255616).

Almost surely, 2^79731726116 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 79731726116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81577668480).

79731726116 is an abundant number, since it is smaller than the sum of its proper divisors (83423610844).

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

79731726116 is a wasteful number, since it uses less digits than its factorization.

79731726116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19382 (or 19359 counting only the distinct ones).

The product of its digits is 666792, while the sum is 50.

The spelling of 79731726116 in words is "seventy-nine billion, seven hundred thirty-one million, seven hundred twenty-six thousand, one hundred sixteen".