12612550513 has 2 divisors, whose sum is σ = 12612550514. Its totient is φ = 12612550512.

The previous prime is 12612550471. The next prime is 12612550523. The reversal of 12612550513 is 31505521621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9640883344 + 2971667169 = 98188^2 + 54513^2 .

It is a cyclic number.

It is not a de Polignac number, because 12612550513 - 2³³ = 4022615921 is a prime.

It is not a weakly prime, because it can be changed into another prime (12612550523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6306275256 + 6306275257.

It is an arithmetic number, because the mean of its divisors is an integer number (6306275257).

Almost surely, 2^12612550513 is an apocalyptic number.

It is an amenable number.

12612550513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12612550513 is an equidigital number, since it uses as much as digits as its factorization.

12612550513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 12612550513 in words is "twelve billion, six hundred twelve million, five hundred fifty thousand, five hundred thirteen".