12725624689 has 2 divisors, whose sum is σ = 12725624690. Its totient is φ = 12725624688.

The previous prime is 12725624641. The next prime is 12725624701. The reversal of 12725624689 is 98642652721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12387690000 + 337934689 = 111300^2 + 18383^2 .

It is a cyclic number.

It is not a de Polignac number, because 12725624689 - 2²⁵ = 12692070257 is a prime.

It is not a weakly prime, because it can be changed into another prime (12725624609) 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, 6362812344 + 6362812345.

It is an arithmetic number, because the mean of its divisors is an integer number (6362812345).

Almost surely, 2^12725624689 is an apocalyptic number.

It is an amenable number.

12725624689 is a deficient number, since it is larger than the sum of its proper divisors (1).

12725624689 is an equidigital number, since it uses as much as digits as its factorization.

12725624689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 52.

The spelling of 12725624689 in words is "twelve billion, seven hundred twenty-five million, six hundred twenty-four thousand, six hundred eighty-nine".