13387000409 has 2 divisors, whose sum is σ = 13387000410. Its totient is φ = 13387000408.

The previous prime is 13387000369. The next prime is 13387000439. The reversal of 13387000409 is 90400078331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7572480400 + 5814520009 = 87020^2 + 76253^2 .

It is a cyclic number.

It is not a de Polignac number, because 13387000409 - 2²⁴ = 13370223193 is a prime.

It is not a weakly prime, because it can be changed into another prime (13387000439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6693500204 + 6693500205.

It is an arithmetic number, because the mean of its divisors is an integer number (6693500205).

Almost surely, 2^13387000409 is an apocalyptic number.

It is an amenable number.

13387000409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13387000409 is an equidigital number, since it uses as much as digits as its factorization.

13387000409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 13387000409 in words is "thirteen billion, three hundred eighty-seven million, four hundred nine", and thus it is an aban number.