319868913 has 48 divisors (see below), whose sum is σ = 543533760. Its totient is φ = 165803904.

The previous prime is 319868911. The next prime is 319868929.

319868913 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 319868913 - 2¹ = 319868911 is a prime.

It is a super-2 number, since 2×319868913² = 204632243007603138, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (319868911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111331 + ... + 114167.

It is an arithmetic number, because the mean of its divisors is an integer number (11323620).

Almost surely, 2^319868913 is an apocalyptic number.

It is an amenable number.

319868913 is a deficient number, since it is larger than the sum of its proper divisors (223664847).

319868913 is a wasteful number, since it uses less digits than its factorization.

319868913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926 (or 2919 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 319868913 is about 17884.8794516485. The cubic root of 319868913 is about 683.8969677406.

The spelling of 319868913 in words is "three hundred nineteen million, eight hundred sixty-eight thousand, nine hundred thirteen".