13047008509 has 2 divisors, whose sum is σ = 13047008510. Its totient is φ = 13047008508.

The previous prime is 13047008473. The next prime is 13047008531. The reversal of 13047008509 is 90580074031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10079156025 + 2967852484 = 100395^2 + 54478^2 .

It is a cyclic number.

It is not a de Polignac number, because 13047008509 - 2¹¹ = 13047006461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13047008549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6523504254 + 6523504255.

It is an arithmetic number, because the mean of its divisors is an integer number (6523504255).

Almost surely, 2^13047008509 is an apocalyptic number.

It is an amenable number.

13047008509 is a deficient number, since it is larger than the sum of its proper divisors (1).

13047008509 is an equidigital number, since it uses as much as digits as its factorization.

13047008509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 13047008509 in words is "thirteen billion, forty-seven million, eight thousand, five hundred nine".