138876533859 has 32 divisors (see below), whose sum is σ = 218592133120. Its totient is φ = 76747370400.

The previous prime is 138876533839. The next prime is 138876533881. The reversal of 138876533859 is 958335678831.

It is not a de Polignac number, because 138876533859 - 2¹² = 138876529763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138876533859.

It is not an unprimeable number, because it can be changed into a prime (138876533839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 927012 + ... + 1066350.

It is an arithmetic number, because the mean of its divisors is an integer number (6831004160).

Almost surely, 2^138876533859 is an apocalyptic number.

138876533859 is a deficient number, since it is larger than the sum of its proper divisors (79715599261).

138876533859 is a wasteful number, since it uses less digits than its factorization.

138876533859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140911.

The product of its digits is 130636800, while the sum is 66.

The spelling of 138876533859 in words is "one hundred thirty-eight billion, eight hundred seventy-six million, five hundred thirty-three thousand, eight hundred fifty-nine".