13104790649 has 2 divisors, whose sum is σ = 13104790650. Its totient is φ = 13104790648.

The previous prime is 13104790609. The next prime is 13104790669. The reversal of 13104790649 is 94609740131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10375459600 + 2729331049 = 101860^2 + 52243^2 .

It is a cyclic number.

It is not a de Polignac number, because 13104790649 - 2⁸ = 13104790393 is a prime.

It is not a weakly prime, because it can be changed into another prime (13104790609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552395324 + 6552395325.

It is an arithmetic number, because the mean of its divisors is an integer number (6552395325).

Almost surely, 2^13104790649 is an apocalyptic number.

It is an amenable number.

13104790649 is a deficient number, since it is larger than the sum of its proper divisors (1).

13104790649 is an equidigital number, since it uses as much as digits as its factorization.

13104790649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 13104790649 in words is "thirteen billion, one hundred four million, seven hundred ninety thousand, six hundred forty-nine".