13869197591 has 2 divisors, whose sum is σ = 13869197592. Its totient is φ = 13869197590.

The previous prime is 13869197557. The next prime is 13869197627. The reversal of 13869197591 is 19579196831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13869197591 - 2¹⁸ = 13868935447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13869197591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13869497591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6934598795 + 6934598796.

It is an arithmetic number, because the mean of its divisors is an integer number (6934598796).

Almost surely, 2^13869197591 is an apocalyptic number.

13869197591 is a deficient number, since it is larger than the sum of its proper divisors (1).

13869197591 is an equidigital number, since it uses as much as digits as its factorization.

13869197591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 59.

The spelling of 13869197591 in words is "thirteen billion, eight hundred sixty-nine million, one hundred ninety-seven thousand, five hundred ninety-one".