13404342209 has 2 divisors, whose sum is σ = 13404342210. Its totient is φ = 13404342208.

The previous prime is 13404342199. The next prime is 13404342229. The reversal of 13404342209 is 90224340431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8422099984 + 4982242225 = 91772^2 + 70585^2 .

It is a cyclic number.

It is not a de Polignac number, because 13404342209 - 2⁸ = 13404341953 is a prime.

It is not a weakly prime, because it can be changed into another prime (13404342229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702171104 + 6702171105.

It is an arithmetic number, because the mean of its divisors is an integer number (6702171105).

Almost surely, 2^13404342209 is an apocalyptic number.

It is an amenable number.

13404342209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13404342209 is an equidigital number, since it uses as much as digits as its factorization.

13404342209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 13404342209 in words is "thirteen billion, four hundred four million, three hundred forty-two thousand, two hundred nine".