138826077520715 has 16 divisors (see below), whose sum is σ = 188848429341600. Its totient is φ = 97122049373952.

The previous prime is 138826077520679. The next prime is 138826077520721. The reversal of 138826077520715 is 517025770628831.

It is a cyclic number.

It is not a de Polignac number, because 138826077520715 - 2³⁴ = 138808897651531 is a prime.

It is a super-2 number, since 2×138826077520715² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56204888450 + ... + 56204890919.

It is an arithmetic number, because the mean of its divisors is an integer number (11803026833850).

Almost surely, 2^{138826077520715} is an apocalyptic number.

138826077520715 is a deficient number, since it is larger than the sum of its proper divisors (50022351820885).

138826077520715 is a wasteful number, since it uses less digits than its factorization.

138826077520715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112409779406.

The product of its (nonzero) digits is 39513600, while the sum is 62.

The spelling of 138826077520715 in words is "one hundred thirty-eight trillion, eight hundred twenty-six billion, seventy-seven million, five hundred twenty thousand, seven hundred fifteen".