12613514909 has 2 divisors, whose sum is σ = 12613514910. Its totient is φ = 12613514908.

The previous prime is 12613514831. The next prime is 12613514941. The reversal of 12613514909 is 90941531621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6579643225 + 6033871684 = 81115^2 + 77678^2 .

It is a cyclic number.

It is not a de Polignac number, because 12613514909 - 2²⁰ = 12612466333 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12613514999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6306757454 + 6306757455.

It is an arithmetic number, because the mean of its divisors is an integer number (6306757455).

Almost surely, 2^12613514909 is an apocalyptic number.

It is an amenable number.

12613514909 is a deficient number, since it is larger than the sum of its proper divisors (1).

12613514909 is an equidigital number, since it uses as much as digits as its factorization.

12613514909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 12613514909 in words is "twelve billion, six hundred thirteen million, five hundred fourteen thousand, nine hundred nine".