138877711559 has 2 divisors, whose sum is σ = 138877711560. Its totient is φ = 138877711558.

The previous prime is 138877711517. The next prime is 138877711571. The reversal of 138877711559 is 955117778831.

It is a strong prime.

It is an emirp because it is prime and its reverse (955117778831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138877711559 - 2²⁰ = 138876662983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138877771559) 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, 69438855779 + 69438855780.

It is an arithmetic number, because the mean of its divisors is an integer number (69438855780).

Almost surely, 2^138877711559 is an apocalyptic number.

138877711559 is a deficient number, since it is larger than the sum of its proper divisors (1).

138877711559 is an equidigital number, since it uses as much as digits as its factorization.

138877711559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14817600, while the sum is 62.

The spelling of 138877711559 in words is "one hundred thirty-eight billion, eight hundred seventy-seven million, seven hundred eleven thousand, five hundred fifty-nine".