319444444913 has 16 divisors (see below), whose sum is σ = 348937146432. Its totient is φ = 290027400000.

The previous prime is 319444444909. The next prime is 319444444931.

319444444913 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 319444444913 - 2² = 319444444909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (319444444513) 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, 31005863 + ... + 31016163.

It is an arithmetic number, because the mean of its divisors is an integer number (21808571652).

Almost surely, 2^319444444913 is an apocalyptic number.

It is an amenable number.

319444444913 is a deficient number, since it is larger than the sum of its proper divisors (29492701519).

319444444913 is a wasteful number, since it uses less digits than its factorization.

319444444913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13696.

The product of its digits is 2985984, while the sum is 50.

The spelling of 319444444913 in words is "three hundred nineteen billion, four hundred forty-four million, four hundred forty-four thousand, nine hundred thirteen".