13885568939 has 16 divisors (see below), whose sum is σ = 15888324096. Its totient is φ = 12020738400.

The previous prime is 13885568911. The next prime is 13885568959. The reversal of 13885568939 is 93986558831.

It is a de Polignac number, because none of the positive numbers 2^k-13885568939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13885568959) 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, 343817 + ... + 382074.

It is an arithmetic number, because the mean of its divisors is an integer number (993020256).

Almost surely, 2^13885568939 is an apocalyptic number.

13885568939 is a deficient number, since it is larger than the sum of its proper divisors (2002755157).

13885568939 is a wasteful number, since it uses less digits than its factorization.

13885568939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725986.

The product of its digits is 55987200, while the sum is 65.

The spelling of 13885568939 in words is "thirteen billion, eight hundred eighty-five million, five hundred sixty-eight thousand, nine hundred thirty-nine".