25795802568 has 32 divisors (see below), whose sum is σ = 65706292800. Its totient is φ = 8436362688.

The previous prime is 25795802531. The next prime is 25795802581. The reversal of 25795802568 is 86520859752.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10138588 + ... + 10141131.

It is an arithmetic number, because the mean of its divisors is an integer number (2053321650).

Almost surely, 2^25795802568 is an apocalyptic number.

It is an amenable number.

25795802568 is an abundant number, since it is smaller than the sum of its proper divisors (39910490232).

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

25795802568 is a wasteful number, since it uses less digits than its factorization.

25795802568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20279781 (or 20279777 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 57.

The spelling of 25795802568 in words is "twenty-five billion, seven hundred ninety-five million, eight hundred two thousand, five hundred sixty-eight".