12624661237 has 2 divisors, whose sum is σ = 12624661238. Its totient is φ = 12624661236.

The previous prime is 12624661229. The next prime is 12624661241. The reversal of 12624661237 is 73216642621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7944869956 + 4679791281 = 89134^2 + 68409^2 .

It is an emirp because it is prime and its reverse (73216642621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12624661237 - 2³ = 12624661229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12624661237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12624661267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6312330618 + 6312330619.

It is an arithmetic number, because the mean of its divisors is an integer number (6312330619).

Almost surely, 2^12624661237 is an apocalyptic number.

It is an amenable number.

12624661237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12624661237 is an equidigital number, since it uses as much as digits as its factorization.

12624661237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The spelling of 12624661237 in words is "twelve billion, six hundred twenty-four million, six hundred sixty-one thousand, two hundred thirty-seven".