318666867372 has 144 divisors (see below), whose sum is σ = 1002461241600. Its totient is φ = 83281322880.

The previous prime is 318666867371. The next prime is 318666867403. The reversal of 318666867372 is 273768666813.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (318666867371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1008654 + ... + 1286357.

It is an arithmetic number, because the mean of its divisors is an integer number (6961536400).

Almost surely, 2^318666867372 is an apocalyptic number.

It is an amenable number.

318666867372 is an abundant number, since it is smaller than the sum of its proper divisors (683794374228).

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

318666867372 is a wasteful number, since it uses less digits than its factorization.

318666867372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295076 (or 2295071 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 318666867372 in words is "three hundred eighteen billion, six hundred sixty-six million, eight hundred sixty-seven thousand, three hundred seventy-two".