856280199688 has 32 divisors (see below), whose sum is σ = 1643023324800. Its totient is φ = 418142587968.

The previous prime is 856280199667. The next prime is 856280199739. The reversal of 856280199688 is 886991082658.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3576193 + ... + 3808111.

It is an arithmetic number, because the mean of its divisors is an integer number (51344478900).

Almost surely, 2^856280199688 is an apocalyptic number.

It is an amenable number.

856280199688 is a deficient number, since it is larger than the sum of its proper divisors (786743125112).

856280199688 is a wasteful number, since it uses less digits than its factorization.

856280199688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242701 (or 242697 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 70.

The spelling of 856280199688 in words is "eight hundred fifty-six billion, two hundred eighty million, one hundred ninety-nine thousand, six hundred eighty-eight".