13585349209 has 2 divisors, whose sum is σ = 13585349210. Its totient is φ = 13585349208.

The previous prime is 13585349189. The next prime is 13585349249. The reversal of 13585349209 is 90294358531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8784937984 + 4800411225 = 93728^2 + 69285^2 .

It is a cyclic number.

It is not a de Polignac number, because 13585349209 - 2⁷ = 13585349081 is a prime.

It is not a weakly prime, because it can be changed into another prime (13585349249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6792674604 + 6792674605.

It is an arithmetic number, because the mean of its divisors is an integer number (6792674605).

Almost surely, 2^13585349209 is an apocalyptic number.

It is an amenable number.

13585349209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13585349209 is an equidigital number, since it uses as much as digits as its factorization.

13585349209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 13585349209 in words is "thirteen billion, five hundred eighty-five million, three hundred forty-nine thousand, two hundred nine".