13304745491 has 2 divisors, whose sum is σ = 13304745492. Its totient is φ = 13304745490.

The previous prime is 13304745481. The next prime is 13304745511. The reversal of 13304745491 is 19454740331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13304745491 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13304745481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6652372745 + 6652372746.

It is an arithmetic number, because the mean of its divisors is an integer number (6652372746).

Almost surely, 2^13304745491 is an apocalyptic number.

13304745491 is a deficient number, since it is larger than the sum of its proper divisors (1).

13304745491 is an equidigital number, since it uses as much as digits as its factorization.

13304745491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 13304745491 in words is "thirteen billion, three hundred four million, seven hundred forty-five thousand, four hundred ninety-one".