13911107957 has 2 divisors, whose sum is σ = 13911107958. Its totient is φ = 13911107956.

The previous prime is 13911107953. The next prime is 13911107971. The reversal of 13911107957 is 75970111931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11596920721 + 2314187236 = 107689^2 + 48106^2 .

It is a cyclic number.

It is not a de Polignac number, because 13911107957 - 2² = 13911107953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13911107953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6955553978 + 6955553979.

It is an arithmetic number, because the mean of its divisors is an integer number (6955553979).

Almost surely, 2^13911107957 is an apocalyptic number.

It is an amenable number.

13911107957 is a deficient number, since it is larger than the sum of its proper divisors (1).

13911107957 is an equidigital number, since it uses as much as digits as its factorization.

13911107957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59535, while the sum is 44.

The spelling of 13911107957 in words is "thirteen billion, nine hundred eleven million, one hundred seven thousand, nine hundred fifty-seven".