138854503629 has 12 divisors (see below), whose sum is σ = 205231980096. Its totient is φ = 90416885832.

The previous prime is 138854503603. The next prime is 138854503639. The reversal of 138854503629 is 926305458831.

138854503629 is a `hidden beast` number, since 1 + 3 + 8 + 8 + 5 + 4 + 5 + 0 + 3 + 629 = 666.

It is not a de Polignac number, because 138854503629 - 2⁵ = 138854503597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138854503639) 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, 179398197 + ... + 179398970.

It is an arithmetic number, because the mean of its divisors is an integer number (17102665008).

Almost surely, 2^138854503629 is an apocalyptic number.

It is an amenable number.

138854503629 is a deficient number, since it is larger than the sum of its proper divisors (66377476467).

138854503629 is a wasteful number, since it uses less digits than its factorization.

138854503629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358797216 (or 358797213 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 138854503629 in words is "one hundred thirty-eight billion, eight hundred fifty-four million, five hundred three thousand, six hundred twenty-nine".