13991307089 has 2 divisors, whose sum is σ = 13991307090. Its totient is φ = 13991307088.

The previous prime is 13991307061. The next prime is 13991307103. The reversal of 13991307089 is 98070319931.

It is a happy number.

13991307089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13527550864 + 463756225 = 116308^2 + 21535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13991307089 is a prime.

It is not a weakly prime, because it can be changed into another prime (13991303089) 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, 6995653544 + 6995653545.

It is an arithmetic number, because the mean of its divisors is an integer number (6995653545).

Almost surely, 2^13991307089 is an apocalyptic number.

It is an amenable number.

13991307089 is a deficient number, since it is larger than the sum of its proper divisors (1).

13991307089 is an equidigital number, since it uses as much as digits as its factorization.

13991307089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 50.

The spelling of 13991307089 in words is "thirteen billion, nine hundred ninety-one million, three hundred seven thousand, eighty-nine".