25882779904 has 144 divisors (see below), whose sum is σ = 55188130816. Its totient is φ = 12093235200.

The previous prime is 25882779893. The next prime is 25882779919. The reversal of 25882779904 is 40997728852.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53147149 + ... + 53147635.

Almost surely, 2^25882779904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25882779904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27594065408).

25882779904 is an abundant number, since it is smaller than the sum of its proper divisors (29305350912).

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

25882779904 is a wasteful number, since it uses less digits than its factorization.

25882779904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 25882779904 in words is "twenty-five billion, eight hundred eighty-two million, seven hundred seventy-nine thousand, nine hundred four".