25880756868 has 72 divisors (see below), whose sum is σ = 68603971800. Its totient is φ = 8215312896.

The previous prime is 25880756861. The next prime is 25880756879. The reversal of 25880756868 is 86865708852.

25880756868 is a `hidden beast` number, since 2 + 5 + 8 + 8 + 0 + 7 + 568 + 68 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 249387264 + 25631369604 = 15792^2 + 160098^2 .

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25880756861) 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, 93583 + ... + 246006.

Almost surely, 2^25880756868 is an apocalyptic number.

It is an amenable number.

25880756868 is an abundant number, since it is smaller than the sum of its proper divisors (42723214932).

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

25880756868 is a wasteful number, since it uses less digits than its factorization.

25880756868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339701 (or 339696 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 63.

The spelling of 25880756868 in words is "twenty-five billion, eight hundred eighty million, seven hundred fifty-six thousand, eight hundred sixty-eight".