85857011856 has 160 divisors (see below), whose sum is σ = 307251763200. Its totient is φ = 22300513920.

The previous prime is 85857011833. The next prime is 85857011861. The reversal of 85857011856 is 65811075858.

85857011856 is a `hidden beast` number, since 8 + 5 + 8 + 570 + 1 + 18 + 56 = 666.

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

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, 1257276 + ... + 1323803.

It is an arithmetic number, because the mean of its divisors is an integer number (1920323520).

Almost surely, 2^85857011856 is an apocalyptic number.

It is an amenable number.

85857011856 is an abundant number, since it is smaller than the sum of its proper divisors (221394751344).

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

85857011856 is a wasteful number, since it uses less digits than its factorization.

85857011856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581114 (or 2581102 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 54.

The spelling of 85857011856 in words is "eighty-five billion, eight hundred fifty-seven million, eleven thousand, eight hundred fifty-six".