15313881339 has 12 divisors (see below), whose sum is σ = 22121134672. Its totient is φ = 10208754000.

The previous prime is 15313881337. The next prime is 15313881343. The reversal of 15313881339 is 93318831351.

15313881339 is a `hidden beast` number, since 1 + 531 + 3 + 8 + 81 + 3 + 39 = 666.

It is not a de Polignac number, because 15313881339 - 2¹ = 15313881337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15313881294 and 15313881303.

It is not an unprimeable number, because it can be changed into a prime (15313881337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297189 + ... + 344889.

Almost surely, 2^15313881339 is an apocalyptic number.

15313881339 is a deficient number, since it is larger than the sum of its proper divisors (6807253333).

15313881339 is a wasteful number, since it uses less digits than its factorization.

15313881339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83378 (or 83375 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 15313881339 in words is "fifteen billion, three hundred thirteen million, eight hundred eighty-one thousand, three hundred thirty-nine".