856888056404 has 24 divisors (see below), whose sum is σ = 1505772235968. Its totient is φ = 426668267520.

The previous prime is 856888056347. The next prime is 856888056443. The reversal of 856888056404 is 404650888658.

It is a super-2 number, since 2×856888056404² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 4010969 + ... + 4219199.

It is an arithmetic number, because the mean of its divisors is an integer number (62740509832).

Almost surely, 2^856888056404 is an apocalyptic number.

It is an amenable number.

856888056404 is a deficient number, since it is larger than the sum of its proper divisors (648884179564).

856888056404 is a wasteful number, since it uses less digits than its factorization.

856888056404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212495 (or 212493 counting only the distinct ones).

The product of its (nonzero) digits is 58982400, while the sum is 62.

The spelling of 856888056404 in words is "eight hundred fifty-six billion, eight hundred eighty-eight million, fifty-six thousand, four hundred four".