318636326672 has 10 divisors (see below), whose sum is σ = 617357882958. Its totient is φ = 159318163328.

The previous prime is 318636326653. The next prime is 318636326731. The reversal of 318636326672 is 276623636813.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 265138487056 + 53497839616 = 514916^2 + 231296^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9957385193 + ... + 9957385224.

Almost surely, 2^318636326672 is an apocalyptic number.

It is an amenable number.

318636326672 is a deficient number, since it is larger than the sum of its proper divisors (298721556286).

318636326672 is a wasteful number, since it uses less digits than its factorization.

318636326672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19914770425 (or 19914770419 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 53.

The spelling of 318636326672 in words is "three hundred eighteen billion, six hundred thirty-six million, three hundred twenty-six thousand, six hundred seventy-two".