13489665231939 has 24 divisors (see below), whose sum is σ = 19489196952000. Its totient is φ = 8295794069472.

The previous prime is 13489665231919. The next prime is 13489665231997. The reversal of 13489665231939 is 93913256698431.

It is not a de Polignac number, because 13489665231939 - 2²³ = 13489656843331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13489665231919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8114869 + ... + 9634854.

It is an arithmetic number, because the mean of its divisors is an integer number (812049873000).

Almost surely, 2^{13489665231939} is an apocalyptic number.

13489665231939 is a deficient number, since it is larger than the sum of its proper divisors (5999531720061).

13489665231939 is a wasteful number, since it uses less digits than its factorization.

13489665231939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17751251 (or 17751238 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 69.

The spelling of 13489665231939 in words is "thirteen trillion, four hundred eighty-nine billion, six hundred sixty-five million, two hundred thirty-one thousand, nine hundred thirty-nine".