138756313759 has 8 divisors (see below), whose sum is σ = 158677337088. Its totient is φ = 118859963640.

The previous prime is 138756313757. The next prime is 138756313763. The reversal of 138756313759 is 957313657831.

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

It is a cyclic number.

It is not a de Polignac number, because 138756313759 - 2¹ = 138756313757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138756313757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6156247 + ... + 6178744.

It is an arithmetic number, because the mean of its divisors is an integer number (19834667136).

Almost surely, 2^138756313759 is an apocalyptic number.

138756313759 is a deficient number, since it is larger than the sum of its proper divisors (19921023329).

138756313759 is a wasteful number, since it uses less digits than its factorization.

138756313759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12336605.

The product of its digits is 14288400, while the sum is 58.

The spelling of 138756313759 in words is "one hundred thirty-eight billion, seven hundred fifty-six million, three hundred thirteen thousand, seven hundred fifty-nine".