138769118591 has 2 divisors, whose sum is σ = 138769118592. Its totient is φ = 138769118590.

The previous prime is 138769118573. The next prime is 138769118617. The reversal of 138769118591 is 195811967831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138769118591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138769118591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138769168591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69384559295 + 69384559296.

It is an arithmetic number, because the mean of its divisors is an integer number (69384559296).

Almost surely, 2^138769118591 is an apocalyptic number.

138769118591 is a deficient number, since it is larger than the sum of its proper divisors (1).

138769118591 is an equidigital number, since it uses as much as digits as its factorization.

138769118591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 59.

The spelling of 138769118591 in words is "one hundred thirty-eight billion, seven hundred sixty-nine million, one hundred eighteen thousand, five hundred ninety-one".