12612864137 has 2 divisors, whose sum is σ = 12612864138. Its totient is φ = 12612864136.

The previous prime is 12612864097. The next prime is 12612864139. The reversal of 12612864137 is 73146821621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11049373456 + 1563490681 = 105116^2 + 39541^2 .

It is a cyclic number.

It is not a de Polignac number, because 12612864137 - 2¹⁰ = 12612863113 is a prime.

Together with 12612864139, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12612864094 and 12612864103.

It is not a weakly prime, because it can be changed into another prime (12612864139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6306432068 + 6306432069.

It is an arithmetic number, because the mean of its divisors is an integer number (6306432069).

Almost surely, 2^12612864137 is an apocalyptic number.

It is an amenable number.

12612864137 is a deficient number, since it is larger than the sum of its proper divisors (1).

12612864137 is an equidigital number, since it uses as much as digits as its factorization.

12612864137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The spelling of 12612864137 in words is "twelve billion, six hundred twelve million, eight hundred sixty-four thousand, one hundred thirty-seven".