318839953892 has 12 divisors (see below), whose sum is σ = 559465819836. Its totient is φ = 158992576800.

The previous prime is 318839953889. The next prime is 318839953903. The reversal of 318839953892 is 298359938813.

It can be written as a sum of positive squares in 2 ways, for example, as 167531401636 + 151308552256 = 409306^2 + 388984^2 .

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, 106848359 + ... + 106851342.

It is an arithmetic number, because the mean of its divisors is an integer number (46622151653).

Almost surely, 2^318839953892 is an apocalyptic number.

It is an amenable number.

318839953892 is a deficient number, since it is larger than the sum of its proper divisors (240625865944).

318839953892 is a wasteful number, since it uses less digits than its factorization.

318839953892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213700078 (or 213700076 counting only the distinct ones).

The product of its digits is 100776960, while the sum is 68.

The spelling of 318839953892 in words is "three hundred eighteen billion, eight hundred thirty-nine million, nine hundred fifty-three thousand, eight hundred ninety-two".