319891881904 has 40 divisors (see below), whose sum is σ = 708359804928. Its totient is φ = 137091144000.

The previous prime is 319891881901. The next prime is 319891881949. The reversal of 319891881904 is 409188198913.

It is a super-2 number, since 2×319891881904² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (319891881901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4359729 + ... + 4432495.

Almost surely, 2^319891881904 is an apocalyptic number.

It is an amenable number.

319891881904 is an abundant number, since it is smaller than the sum of its proper divisors (388467923024).

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

319891881904 is a wasteful number, since it uses less digits than its factorization.

319891881904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112033 (or 112027 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 61.

The spelling of 319891881904 in words is "three hundred nineteen billion, eight hundred ninety-one million, eight hundred eighty-one thousand, nine hundred four".