138929611579 has 16 divisors (see below), whose sum is σ = 155699439840. Its totient is φ = 122851676160.

The previous prime is 138929611577. The next prime is 138929611591. The reversal of 138929611579 is 975116929831.

It is a cyclic number.

It is not a de Polignac number, because 138929611579 - 2¹ = 138929611577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138929611577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1463547 + ... + 1555579.

It is an arithmetic number, because the mean of its divisors is an integer number (9731214990).

Almost surely, 2^138929611579 is an apocalyptic number.

138929611579 is a deficient number, since it is larger than the sum of its proper divisors (16769828261).

138929611579 is a wasteful number, since it uses less digits than its factorization.

138929611579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95790.

The product of its digits is 7348320, while the sum is 61.

The spelling of 138929611579 in words is "one hundred thirty-eight billion, nine hundred twenty-nine million, six hundred eleven thousand, five hundred seventy-nine".