138107826423 has 12 divisors (see below), whose sum is σ = 227987523088. Its totient is φ = 78918757920.

The previous prime is 138107826391. The next prime is 138107826433. The reversal of 138107826423 is 324628701831.

138107826423 is a `hidden beast` number, since 1 + 381 + 0 + 7 + 8 + 264 + 2 + 3 = 666.

It is not a de Polignac number, because 138107826423 - 2⁵ = 138107826391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138107826433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1096093798 + ... + 1096093923.

Almost surely, 2^138107826423 is an apocalyptic number.

138107826423 is a deficient number, since it is larger than the sum of its proper divisors (89879696665).

138107826423 is a wasteful number, since it uses less digits than its factorization.

138107826423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192187734 (or 2192187731 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 138107826423 in words is "one hundred thirty-eight billion, one hundred seven million, eight hundred twenty-six thousand, four hundred twenty-three".