13208837513 has 2 divisors, whose sum is σ = 13208837514. Its totient is φ = 13208837512.

The previous prime is 13208837501. The next prime is 13208837549. The reversal of 13208837513 is 31573880231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13170546169 + 38291344 = 114763^2 + 6188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13208837513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13208837573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6604418756 + 6604418757.

It is an arithmetic number, because the mean of its divisors is an integer number (6604418757).

Almost surely, 2^13208837513 is an apocalyptic number.

It is an amenable number.

13208837513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13208837513 is an equidigital number, since it uses as much as digits as its factorization.

13208837513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 13208837513 in words is "thirteen billion, two hundred eight million, eight hundred thirty-seven thousand, five hundred thirteen".