12751402637 has 2 divisors, whose sum is σ = 12751402638. Its totient is φ = 12751402636.

The previous prime is 12751402627. The next prime is 12751402663. The reversal of 12751402637 is 73620415721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7764076996 + 4987325641 = 88114^2 + 70621^2 .

It is a cyclic number.

It is not a de Polignac number, because 12751402637 - 2²⁰ = 12750354061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12751402637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12751402627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375701318 + 6375701319.

It is an arithmetic number, because the mean of its divisors is an integer number (6375701319).

Almost surely, 2^12751402637 is an apocalyptic number.

It is an amenable number.

12751402637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12751402637 is an equidigital number, since it uses as much as digits as its factorization.

12751402637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 12751402637 in words is "twelve billion, seven hundred fifty-one million, four hundred two thousand, six hundred thirty-seven".