25680996621888 has 112 divisors (see below), whose sum is σ = 71529196032000. Its totient is φ = 8109179785728.

The previous prime is 25680996621779. The next prime is 25680996621911. The reversal of 25680996621888 is 88812669908652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49643673 + ... + 50158311.

It is an arithmetic number, because the mean of its divisors is an integer number (638653536000).

Almost surely, 2^{25680996621888} is an apocalyptic number.

It is an amenable number.

25680996621888 is an abundant number, since it is smaller than the sum of its proper divisors (45848199410112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25680996621888 is a wasteful number, since it uses less digits than its factorization.

25680996621888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528352 (or 528342 counting only the distinct ones).

The product of its (nonzero) digits is 1433272320, while the sum is 78.

The spelling of 25680996621888 in words is "twenty-five trillion, six hundred eighty billion, nine hundred ninety-six million, six hundred twenty-one thousand, eight hundred eighty-eight".