79860344256 has 672 divisors, whose sum is σ = 302220172800. Its totient is φ = 20727705600.

The previous prime is 79860344203. The next prime is 79860344273. The reversal of 79860344256 is 65244306897.

79860344256 is a `hidden beast` number, since 7 + 9 + 8 + 603 + 4 + 4 + 25 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58677016 + ... + 58678376.

It is an arithmetic number, because the mean of its divisors is an integer number (449732400).

Almost surely, 2^79860344256 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 79860344256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151110086400).

79860344256 is an abundant number, since it is smaller than the sum of its proper divisors (222359828544).

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

79860344256 is a wasteful number, since it uses less digits than its factorization.

79860344256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1384 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 79860344256 in words is "seventy-nine billion, eight hundred sixty million, three hundred forty-four thousand, two hundred fifty-six".