319914878399 has 16 divisors (see below), whose sum is σ = 338689533600. Its totient is φ = 301658413056.

The previous prime is 319914878389. The next prime is 319914878419. The reversal of 319914878399 is 993878419913.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319914878399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319914878359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12698087 + ... + 12723255.

It is an arithmetic number, because the mean of its divisors is an integer number (21168095850).

Almost surely, 2^319914878399 is an apocalyptic number.

319914878399 is a deficient number, since it is larger than the sum of its proper divisors (18774655201).

319914878399 is a wasteful number, since it uses less digits than its factorization.

319914878399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35434.

The product of its digits is 105815808, while the sum is 71.

The spelling of 319914878399 in words is "three hundred nineteen billion, nine hundred fourteen million, eight hundred seventy-eight thousand, three hundred ninety-nine".