138825750671567 has 4 divisors (see below), whose sum is σ = 138825783905616. Its totient is φ = 138825717437520.

The previous prime is 138825750671513. The next prime is 138825750671617. The reversal of 138825750671567 is 765176057528831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138825750671567 - 2²⁰ = 138825749622991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138825750671567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138825750601567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9267734 + ... + 19066787.

It is an arithmetic number, because the mean of its divisors is an integer number (34706445976404).

Almost surely, 2^{138825750671567} is an apocalyptic number.

138825750671567 is a deficient number, since it is larger than the sum of its proper divisors (33234049).

138825750671567 is an equidigital number, since it uses as much as digits as its factorization.

138825750671567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33234048.

The product of its (nonzero) digits is 592704000, while the sum is 71.

The spelling of 138825750671567 in words is "one hundred thirty-eight trillion, eight hundred twenty-five billion, seven hundred fifty million, six hundred seventy-one thousand, five hundred sixty-seven".