138579478562 has 16 divisors (see below), whose sum is σ = 243359085312. Its totient is φ = 57942638880.

The previous prime is 138579478517. The next prime is 138579478673. The reversal of 138579478562 is 265874975831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120713258 + ... + 120714405.

It is an arithmetic number, because the mean of its divisors is an integer number (15209942832).

Almost surely, 2^138579478562 is an apocalyptic number.

138579478562 is a deficient number, since it is larger than the sum of its proper divisors (104779606750).

138579478562 is a wasteful number, since it uses less digits than its factorization.

138579478562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241427713.

The product of its digits is 101606400, while the sum is 65.

The spelling of 138579478562 in words is "one hundred thirty-eight billion, five hundred seventy-nine million, four hundred seventy-eight thousand, five hundred sixty-two".