12630640609897 has 2 divisors, whose sum is σ = 12630640609898. Its totient is φ = 12630640609896.

The previous prime is 12630640609877. The next prime is 12630640609907. The reversal of 12630640609897 is 79890604603621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12578804248921 + 51836360976 = 3546661^2 + 227676^2 .

It is a cyclic number.

It is not a de Polignac number, because 12630640609897 - 2²⁷ = 12630506392169 is a prime.

It is not a weakly prime, because it can be changed into another prime (12630640609837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315320304948 + 6315320304949.

It is an arithmetic number, because the mean of its divisors is an integer number (6315320304949).

Almost surely, 2^{12630640609897} is an apocalyptic number.

It is an amenable number.

12630640609897 is a deficient number, since it is larger than the sum of its proper divisors (1).

12630640609897 is an equidigital number, since it uses as much as digits as its factorization.

12630640609897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 12630640609897 in words is "twelve trillion, six hundred thirty billion, six hundred forty million, six hundred nine thousand, eight hundred ninety-seven".