25453864712 has 16 divisors (see below), whose sum is σ = 47785002300. Its totient is φ = 12711197440.

The previous prime is 25453864627. The next prime is 25453864753. The reversal of 25453864712 is 21746835452.

It can be written as a sum of positive squares in 2 ways, for example, as 20241891076 + 5211973636 = 142274^2 + 72194^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959989 + ... + 1972932.

Almost surely, 2^25453864712 is an apocalyptic number.

It is an amenable number.

25453864712 is a deficient number, since it is larger than the sum of its proper divisors (22331137588).

25453864712 is a wasteful number, since it uses less digits than its factorization.

25453864712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933736 (or 3933732 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 47.

The spelling of 25453864712 in words is "twenty-five billion, four hundred fifty-three million, eight hundred sixty-four thousand, seven hundred twelve".