857318012 has 12 divisors (see below), whose sum is σ = 1503564216. Its totient is φ = 427728240.

The previous prime is 857318003. The next prime is 857318029. The reversal of 857318012 is 210813758.

857318012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230618 + ... + 234305.

It is an arithmetic number, because the mean of its divisors is an integer number (125297018).

Almost surely, 2^857318012 is an apocalyptic number.

It is an amenable number.

857318012 is a deficient number, since it is larger than the sum of its proper divisors (646246204).

857318012 is a wasteful number, since it uses less digits than its factorization.

857318012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465388 (or 465386 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 857318012 is about 29279.9933743162. The cubic root of 857318012 is about 949.9789513342.

The spelling of 857318012 in words is "eight hundred fifty-seven million, three hundred eighteen thousand, twelve".