138271675563 has 48 divisors (see below), whose sum is σ = 247003900416. Its totient is φ = 75577043520.

The previous prime is 138271675547. The next prime is 138271675583. The reversal of 138271675563 is 365576172831.

138271675563 is a `hidden beast` number, since 1 + 3 + 8 + 2 + 7 + 1 + 6 + 75 + 563 = 666.

It is not a de Polignac number, because 138271675563 - 2⁴ = 138271675547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138271675583) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1728018 + ... + 1806263.

It is an arithmetic number, because the mean of its divisors is an integer number (5145914592).

Almost surely, 2^138271675563 is an apocalyptic number.

138271675563 is a deficient number, since it is larger than the sum of its proper divisors (108732224853).

138271675563 is an equidigital number, since it uses as much as digits as its factorization.

138271675563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534326 (or 3534314 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The spelling of 138271675563 in words is "one hundred thirty-eight billion, two hundred seventy-one million, six hundred seventy-five thousand, five hundred sixty-three".