856467880836 has 24 divisors (see below), whose sum is σ = 2062890380544. Its totient is φ = 276279961440.

The previous prime is 856467880823. The next prime is 856467880897. The reversal of 856467880836 is 638088764658.

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, 1151166135 + ... + 1151166878.

It is an arithmetic number, because the mean of its divisors is an integer number (85953765856).

Almost surely, 2^856467880836 is an apocalyptic number.

It is an amenable number.

856467880836 is an abundant number, since it is smaller than the sum of its proper divisors (1206422499708).

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

856467880836 is a wasteful number, since it uses less digits than its factorization.

856467880836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302333051 (or 2302333049 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 69.

The spelling of 856467880836 in words is "eight hundred fifty-six billion, four hundred sixty-seven million, eight hundred eighty thousand, eight hundred thirty-six".