318057889672 has 16 divisors (see below), whose sum is σ = 596400762060. Its totient is φ = 159017686464.

The previous prime is 318057889649. The next prime is 318057889703. The reversal of 318057889672 is 276988750813.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 317998999396 + 58890276 = 563914^2 + 7674^2 .

It is a super-2 number, since 2×318057889672² (a number of 24 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1286623 + ... + 1513774.

Almost surely, 2^318057889672 is an apocalyptic number.

It is an amenable number.

318057889672 is a deficient number, since it is larger than the sum of its proper divisors (278342872388).

318057889672 is a wasteful number, since it uses less digits than its factorization.

318057889672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814600 (or 2814596 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 318057889672 in words is "three hundred eighteen billion, fifty-seven million, eight hundred eighty-nine thousand, six hundred seventy-two".