12604527613 has 2 divisors, whose sum is σ = 12604527614. Its totient is φ = 12604527612.

The previous prime is 12604527563. The next prime is 12604527647. The reversal of 12604527613 is 31672540621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10298799289 + 2305728324 = 101483^2 + 48018^2 .

It is a cyclic number.

It is not a de Polignac number, because 12604527613 - 2⁹ = 12604527101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12604521613) 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, 6302263806 + 6302263807.

It is an arithmetic number, because the mean of its divisors is an integer number (6302263807).

Almost surely, 2^12604527613 is an apocalyptic number.

It is an amenable number.

12604527613 is a deficient number, since it is larger than the sum of its proper divisors (1).

12604527613 is an equidigital number, since it uses as much as digits as its factorization.

12604527613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 12604527613 in words is "twelve billion, six hundred four million, five hundred twenty-seven thousand, six hundred thirteen".