319873429487 has 16 divisors (see below), whose sum is σ = 327714230400. Its totient is φ = 312147613440.

The previous prime is 319873429459. The next prime is 319873429489. The reversal of 319873429487 is 784924378913.

It is a cyclic number.

It is not a de Polignac number, because 319873429487 - 2⁶ = 319873429423 is a prime.

It is a super-2 number, since 2×319873429487² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319873429489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2413937 + ... + 2542997.

It is an arithmetic number, because the mean of its divisors is an integer number (20482139400).

Almost surely, 2^319873429487 is an apocalyptic number.

319873429487 is a deficient number, since it is larger than the sum of its proper divisors (7840800913).

319873429487 is a wasteful number, since it uses less digits than its factorization.

319873429487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129506.

The product of its digits is 73156608, while the sum is 65.

The spelling of 319873429487 in words is "three hundred nineteen billion, eight hundred seventy-three million, four hundred twenty-nine thousand, four hundred eighty-seven".