138113108563 has 16 divisors (see below), whose sum is σ = 147253388800. Its totient is φ = 129160643040.

The previous prime is 138113108561. The next prime is 138113108599. The reversal of 138113108563 is 365801311831.

It is a cyclic number.

It is not a de Polignac number, because 138113108563 - 2¹ = 138113108561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138113108561) 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, 12874720 + ... + 12885442.

It is an arithmetic number, because the mean of its divisors is an integer number (9203336800).

Almost surely, 2^138113108563 is an apocalyptic number.

138113108563 is a deficient number, since it is larger than the sum of its proper divisors (9140280237).

138113108563 is a wasteful number, since it uses less digits than its factorization.

138113108563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19402.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 138113108563 in words is "one hundred thirty-eight billion, one hundred thirteen million, one hundred eight thousand, five hundred sixty-three".