13336781459 has 2 divisors, whose sum is σ = 13336781460. Its totient is φ = 13336781458.

The previous prime is 13336781443. The next prime is 13336781519. The reversal of 13336781459 is 95418763331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13336781459 - 2⁴ = 13336781443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13336781959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6668390729 + 6668390730.

It is an arithmetic number, because the mean of its divisors is an integer number (6668390730).

Almost surely, 2^13336781459 is an apocalyptic number.

13336781459 is a deficient number, since it is larger than the sum of its proper divisors (1).

13336781459 is an equidigital number, since it uses as much as digits as its factorization.

13336781459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The spelling of 13336781459 in words is "thirteen billion, three hundred thirty-six million, seven hundred eighty-one thousand, four hundred fifty-nine".