318664772372 has 24 divisors (see below), whose sum is σ = 562099421184. Its totient is φ = 158065139232.

The previous prime is 318664772359. The next prime is 318664772407. The reversal of 318664772372 is 273277466813.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 11755298 + ... + 11782374.

It is an arithmetic number, because the mean of its divisors is an integer number (23420809216).

Almost surely, 2^318664772372 is an apocalyptic number.

It is an amenable number.

318664772372 is a deficient number, since it is larger than the sum of its proper divisors (243434648812).

318664772372 is a wasteful number, since it uses less digits than its factorization.

318664772372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50375 (or 50373 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 56.

The spelling of 318664772372 in words is "three hundred eighteen billion, six hundred sixty-four million, seven hundred seventy-two thousand, three hundred seventy-two".