318515699140 has 12 divisors (see below), whose sum is σ = 668882968236. Its totient is φ = 127406279648.

The previous prime is 318515699087. The next prime is 318515699191. The reversal of 318515699140 is 41996515813.

It can be written as a sum of positive squares in 2 ways, for example, as 108720553984 + 209795145156 = 329728^2 + 458034^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7962892459 + ... + 7962892498.

It is an arithmetic number, because the mean of its divisors is an integer number (55740247353).

Almost surely, 2^318515699140 is an apocalyptic number.

It is an amenable number.

318515699140 is an abundant number, since it is smaller than the sum of its proper divisors (350367269096).

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

318515699140 is a wasteful number, since it uses less digits than its factorization.

318515699140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15925784966 (or 15925784964 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 52.

The spelling of 318515699140 in words is "three hundred eighteen billion, five hundred fifteen million, six hundred ninety-nine thousand, one hundred forty".