318986985079872 has 1344 divisors, whose sum is σ = 1049720322785280. Its totient is φ = 96035605585920.

The previous prime is 318986985079859. The next prime is 318986985079891. The reversal of 318986985079872 is 278970589689813.

318986985079872 is a `hidden beast` number, since 3 + 1 + 8 + 9 + 8 + 6 + 9 + 8 + 507 + 98 + 7 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 159254609623 + ... + 159254611625.

Almost surely, 2^{318986985079872} is an apocalyptic number.

318986985079872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318986985079872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524860161392640).

318986985079872 is an abundant number, since it is smaller than the sum of its proper divisors (730733337705408).

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

318986985079872 is a wasteful number, since it uses less digits than its factorization.

318986985079872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228 (or 2183 counting only the distinct ones).

The product of its (nonzero) digits is 26336378880, while the sum is 90.

The spelling of 318986985079872 in words is "three hundred eighteen trillion, nine hundred eighty-six billion, nine hundred eighty-five million, seventy-nine thousand, eight hundred seventy-two".