25628448928 has 24 divisors (see below), whose sum is σ = 50459867892. Its totient is φ = 12813244416.

The previous prime is 25628448917. The next prime is 25628448941. The reversal of 25628448928 is 82984482652.

It can be written as a sum of positive squares in 2 ways, for example, as 22737020944 + 2891427984 = 150788^2 + 53772^2 .

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, 584176 + ... + 626512.

Almost surely, 2^25628448928 is an apocalyptic number.

It is an amenable number.

25628448928 is a deficient number, since it is larger than the sum of its proper divisors (24831418964).

25628448928 is a wasteful number, since it uses less digits than its factorization.

25628448928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61264 (or 61256 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 58.

The spelling of 25628448928 in words is "twenty-five billion, six hundred twenty-eight million, four hundred forty-eight thousand, nine hundred twenty-eight".