138063360831 has 24 divisors (see below), whose sum is σ = 208867932672. Its totient is φ = 80975571600.

The previous prime is 138063360797. The next prime is 138063360833.

138063360831 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 138063360831 - 2²⁵ = 138029806399 is a prime.

It is a super-2 number, since 2×138063360831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138063360833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6123261 + ... + 6145766.

It is an arithmetic number, because the mean of its divisors is an integer number (8702830528).

Almost surely, 2^138063360831 is an apocalyptic number.

138063360831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

138063360831 is a deficient number, since it is larger than the sum of its proper divisors (70804571841).

138063360831 is a wasteful number, since it uses less digits than its factorization.

138063360831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12269083 (or 12269072 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

It can be divided in two parts, 138063 and 360831, that added together give a palindrome (498894).

The spelling of 138063360831 in words is "one hundred thirty-eight billion, sixty-three million, three hundred sixty thousand, eight hundred thirty-one".