79912886256 has 160 divisors (see below), whose sum is σ = 265739896320. Its totient is φ = 22519420416.

The previous prime is 79912886231. The next prime is 79912886281. The reversal of 79912886256 is 65268821997.

It is an interprime number because it is at equal distance from previous prime (79912886231) and next prime (79912886281).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 79912886193 and 79912886202.

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, 39751 + ... + 401753.

It is an arithmetic number, because the mean of its divisors is an integer number (1660874352).

Almost surely, 2^79912886256 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 79912886256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132869948160).

79912886256 is an abundant number, since it is smaller than the sum of its proper divisors (185827010064).

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

79912886256 is a wasteful number, since it uses less digits than its factorization.

79912886256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362100 (or 362088 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 79912886256 in words is "seventy-nine billion, nine hundred twelve million, eight hundred eighty-six thousand, two hundred fifty-six".