855213574860 has 72 divisors (see below), whose sum is σ = 2594377867536. Its totient is φ = 228036731520.

The previous prime is 855213574819. The next prime is 855213574903. The reversal of 855213574860 is 68475312558.

855213574860 is a `hidden beast` number, since 8 + 5 + 5 + 2 + 1 + 3 + 574 + 8 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 855213574797 and 855213574806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1882615 + ... + 2292305.

It is an arithmetic number, because the mean of its divisors is an integer number (36033025938).

Almost surely, 2^855213574860 is an apocalyptic number.

It is an amenable number.

855213574860 is an abundant number, since it is smaller than the sum of its proper divisors (1739164292676).

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

855213574860 is a wasteful number, since it uses less digits than its factorization.

855213574860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421303 (or 421298 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 855213574860 in words is "eight hundred fifty-five billion, two hundred thirteen million, five hundred seventy-four thousand, eight hundred sixty".