13304209957 has 2 divisors, whose sum is σ = 13304209958. Its totient is φ = 13304209956.

The previous prime is 13304209943. The next prime is 13304210041. The reversal of 13304209957 is 75990240331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7395828001 + 5908381956 = 85999^2 + 76866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13304209957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13304209927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6652104978 + 6652104979.

It is an arithmetic number, because the mean of its divisors is an integer number (6652104979).

Almost surely, 2^13304209957 is an apocalyptic number.

It is an amenable number.

13304209957 is a deficient number, since it is larger than the sum of its proper divisors (1).

13304209957 is an equidigital number, since it uses as much as digits as its factorization.

13304209957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 13304209957 in words is "thirteen billion, three hundred four million, two hundred nine thousand, nine hundred fifty-seven".