138764117055706 has 8 divisors (see below), whose sum is σ = 208150929973044. Its totient is φ = 69380473731360.

The previous prime is 138764117055671. The next prime is 138764117055713. The reversal of 138764117055706 is 607550711467831.

It can be written as a sum of positive squares in 2 ways, for example, as 136920211066681 + 1843905989025 = 11701291^2 + 1357905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792288795 + ... + 792463918.

Almost surely, 2^{138764117055706} is an apocalyptic number.

138764117055706 is a deficient number, since it is larger than the sum of its proper divisors (69386812917338).

138764117055706 is a wasteful number, since it uses less digits than its factorization.

138764117055706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584796496.

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 138764117055706 in words is "one hundred thirty-eight trillion, seven hundred sixty-four billion, one hundred seventeen million, fifty-five thousand, seven hundred six".