856184668 has 12 divisors (see below), whose sum is σ = 1586459952. Its totient is φ = 402910400.

The previous prime is 856184657. The next prime is 856184689. The reversal of 856184668 is 866481658.

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, 6295408 + ... + 6295543.

It is an arithmetic number, because the mean of its divisors is an integer number (132204996).

Almost surely, 2^856184668 is an apocalyptic number.

It is an amenable number.

856184668 is a deficient number, since it is larger than the sum of its proper divisors (730275284).

856184668 is a wasteful number, since it uses less digits than its factorization.

856184668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12590972 (or 12590970 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 52.

The square root of 856184668 is about 29260.6334176142. The cubic root of 856184668 is about 949.5601539099.

The spelling of 856184668 in words is "eight hundred fifty-six million, one hundred eighty-four thousand, six hundred sixty-eight".