138758707567361 has 16 divisors (see below), whose sum is σ = 158617823978880. Its totient is φ = 118908704181120.

The previous prime is 138758707567357. The next prime is 138758707567367. The reversal of 138758707567361 is 163765707857831.

It is not a de Polignac number, because 138758707567361 - 2² = 138758707567357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138758707567367) 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, 997541426 + ... + 997680516.

It is an arithmetic number, because the mean of its divisors is an integer number (9913613998680).

Almost surely, 2^{138758707567361} is an apocalyptic number.

It is an amenable number.

138758707567361 is a deficient number, since it is larger than the sum of its proper divisors (19859116411519).

138758707567361 is a wasteful number, since it uses less digits than its factorization.

138758707567361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170824.

The product of its (nonzero) digits is 1244678400, while the sum is 74.

The spelling of 138758707567361 in words is "one hundred thirty-eight trillion, seven hundred fifty-eight billion, seven hundred seven million, five hundred sixty-seven thousand, three hundred sixty-one".