138887626264 has 16 divisors (see below), whose sum is σ = 260419459320. Its totient is φ = 69442437120.

The previous prime is 138887626261. The next prime is 138887626369. The reversal of 138887626264 is 462626788831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138887626261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350247 + ... + 632809.

Almost surely, 2^138887626264 is an apocalyptic number.

It is an amenable number.

138887626264 is a deficient number, since it is larger than the sum of its proper divisors (121531833056).

138887626264 is a wasteful number, since it uses less digits than its factorization.

138887626264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344010 (or 344006 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 61.

The spelling of 138887626264 in words is "one hundred thirty-eight billion, eight hundred eighty-seven million, six hundred twenty-six thousand, two hundred sixty-four".