138660268675 has 24 divisors (see below), whose sum is σ = 179045727840. Its totient is φ = 106393728000.

The previous prime is 138660268661. The next prime is 138660268687. The reversal of 138660268675 is 576862066831.

It is not a de Polignac number, because 138660268675 - 2⁷ = 138660268547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 523822 + ... + 742771.

It is an arithmetic number, because the mean of its divisors is an integer number (7460238660).

Almost surely, 2^138660268675 is an apocalyptic number.

138660268675 is a deficient number, since it is larger than the sum of its proper divisors (40385459165).

138660268675 is a wasteful number, since it uses less digits than its factorization.

138660268675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266783 (or 1266778 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 138660268675 in words is "one hundred thirty-eight billion, six hundred sixty million, two hundred sixty-eight thousand, six hundred seventy-five".