13887625139 has 16 divisors (see below), whose sum is σ = 14362660800. Its totient is φ = 13421865600.

The previous prime is 13887625111. The next prime is 13887625181. The reversal of 13887625139 is 93152678831.

It is a cyclic number.

It is not a de Polignac number, because 13887625139 - 2¹² = 13887621043 is a prime.

It is a super-2 number, since 2×13887625139² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (13887625109) 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, 1058729 + ... + 1071765.

It is an arithmetic number, because the mean of its divisors is an integer number (897666300).

Almost surely, 2^13887625139 is an apocalyptic number.

13887625139 is a deficient number, since it is larger than the sum of its proper divisors (475035661).

13887625139 is a wasteful number, since it uses less digits than its factorization.

13887625139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13390.

The product of its digits is 2177280, while the sum is 53.

The spelling of 13887625139 in words is "thirteen billion, eight hundred eighty-seven million, six hundred twenty-five thousand, one hundred thirty-nine".