13409809799 has 2 divisors, whose sum is σ = 13409809800. Its totient is φ = 13409809798.

The previous prime is 13409809711. The next prime is 13409809823. The reversal of 13409809799 is 99790890431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13409809799 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13409809199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6704904899 + 6704904900.

It is an arithmetic number, because the mean of its divisors is an integer number (6704904900).

Almost surely, 2^13409809799 is an apocalyptic number.

13409809799 is a deficient number, since it is larger than the sum of its proper divisors (1).

13409809799 is an equidigital number, since it uses as much as digits as its factorization.

13409809799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4408992, while the sum is 59.

The spelling of 13409809799 in words is "thirteen billion, four hundred nine million, eight hundred nine thousand, seven hundred ninety-nine".