318648380864 has 56 divisors (see below), whose sum is σ = 696631196016. Its totient is φ = 143406080000.

The previous prime is 318648380803. The next prime is 318648380881. The reversal of 318648380864 is 468083846813.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2169617 + ... + 2311824.

It is an arithmetic number, because the mean of its divisors is an integer number (12439842786).

Almost surely, 2^318648380864 is an apocalyptic number.

It is an amenable number.

318648380864 is an abundant number, since it is smaller than the sum of its proper divisors (377982815152).

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

318648380864 is a wasteful number, since it uses less digits than its factorization.

318648380864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481565 (or 4481555 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 59.

The spelling of 318648380864 in words is "three hundred eighteen billion, six hundred forty-eight million, three hundred eighty thousand, eight hundred sixty-four".