12257457663 has 24 divisors (see below), whose sum is σ = 17977446144. Its totient is φ = 7423242640.

The previous prime is 12257457647. The next prime is 12257457713. The reversal of 12257457663 is 36675475221.

It is not a de Polignac number, because 12257457663 - 2⁴ = 12257457647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12257457763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506170 + ... + 529832.

It is an arithmetic number, because the mean of its divisors is an integer number (749060256).

Almost surely, 2^12257457663 is an apocalyptic number.

12257457663 is a deficient number, since it is larger than the sum of its proper divisors (5719988481).

12257457663 is a wasteful number, since it uses less digits than its factorization.

12257457663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25115 (or 25104 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 48.

The spelling of 12257457663 in words is "twelve billion, two hundred fifty-seven million, four hundred fifty-seven thousand, six hundred sixty-three".