318670181864 has 16 divisors (see below), whose sum is σ = 597516768420. Its totient is φ = 159332376960.

The previous prime is 318670181833. The next prime is 318670181867. The reversal of 318670181864 is 468181076813.

It can be written as a sum of positive squares in 2 ways, for example, as 317597619364 + 1072562500 = 563558^2 + 32750^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (318670181867) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 212582 + ... + 826154.

Almost surely, 2^318670181864 is an apocalyptic number.

It is an amenable number.

318670181864 is a deficient number, since it is larger than the sum of its proper divisors (278846586556).

318670181864 is a wasteful number, since it uses less digits than its factorization.

318670181864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678500 (or 678496 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 318670181864 in words is "three hundred eighteen billion, six hundred seventy million, one hundred eighty-one thousand, eight hundred sixty-four".