138926885759 has 2 divisors, whose sum is σ = 138926885760. Its totient is φ = 138926885758.

The previous prime is 138926885731. The next prime is 138926885807. The reversal of 138926885759 is 957588629831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138926885759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138926885692 and 138926885701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138926885729) 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 as a sum of consecutive naturals, namely, 69463442879 + 69463442880.

It is an arithmetic number, because the mean of its divisors is an integer number (69463442880).

Almost surely, 2^138926885759 is an apocalyptic number.

138926885759 is a deficient number, since it is larger than the sum of its proper divisors (1).

138926885759 is an equidigital number, since it uses as much as digits as its factorization.

138926885759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 261273600, while the sum is 71.

The spelling of 138926885759 in words is "one hundred thirty-eight billion, nine hundred twenty-six million, eight hundred eighty-five thousand, seven hundred fifty-nine".