319322864421 has 24 divisors (see below), whose sum is σ = 508362813504. Its totient is φ = 191533858560.

The previous prime is 319322864411. The next prime is 319322864447. The reversal of 319322864421 is 124468223913.

319322864421 is a `hidden beast` number, since 319 + 32 + 286 + 4 + 4 + 21 = 666.

It is not a de Polignac number, because 319322864421 - 2⁵ = 319322864389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319322864411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16616601 + ... + 16635806.

It is an arithmetic number, because the mean of its divisors is an integer number (21181783896).

Almost surely, 2^319322864421 is an apocalyptic number.

It is an amenable number.

319322864421 is a deficient number, since it is larger than the sum of its proper divisors (189039949083).

319322864421 is a wasteful number, since it uses less digits than its factorization.

319322864421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33252521 (or 33252518 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The spelling of 319322864421 in words is "three hundred nineteen billion, three hundred twenty-two million, eight hundred sixty-four thousand, four hundred twenty-one".