79136872320 has 256 divisors, whose sum is σ = 275678484480. Its totient is φ = 19149987840.

The previous prime is 79136872301. The next prime is 79136872361. The reversal of 79136872320 is 2327863197.

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

It is a self number, because there is not a number n which added to its sum of digits gives 79136872320.

It is a congruent number.

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, 12816754 + ... + 12822926.

It is an arithmetic number, because the mean of its divisors is an integer number (1076869080).

Almost surely, 2^79136872320 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 79136872320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137839242240).

79136872320 is an abundant number, since it is smaller than the sum of its proper divisors (196541612160).

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

79136872320 is a wasteful number, since it uses less digits than its factorization.

79136872320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6813 (or 6801 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 79136872320 in words is "seventy-nine billion, one hundred thirty-six million, eight hundred seventy-two thousand, three hundred twenty".