84279797256 has 32 divisors (see below), whose sum is σ = 210723595200. Its totient is φ = 28090052160.

The previous prime is 84279797249. The next prime is 84279797267. The reversal of 84279797256 is 65279797248.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18205 + ... + 410963.

It is an arithmetic number, because the mean of its divisors is an integer number (6585112350).

Almost surely, 2^84279797256 is an apocalyptic number.

It is an amenable number.

84279797256 is an abundant number, since it is smaller than the sum of its proper divisors (126443797944).

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

84279797256 is a wasteful number, since it uses less digits than its factorization.

84279797256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401709 (or 401705 counting only the distinct ones).

The product of its digits is 106686720, while the sum is 66.

The spelling of 84279797256 in words is "eighty-four billion, two hundred seventy-nine million, seven hundred ninety-seven thousand, two hundred fifty-six".