25880782704 has 160 divisors (see below), whose sum is σ = 77114112000. Its totient is φ = 7326671616.

The previous prime is 25880782703. The next prime is 25880782769. The reversal of 25880782704 is 40728708852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25880782703) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 27328759 + ... + 27329705.

It is an arithmetic number, because the mean of its divisors is an integer number (481963200).

Almost surely, 2^25880782704 is an apocalyptic number.

25880782704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25880782704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38557056000).

25880782704 is an abundant number, since it is smaller than the sum of its proper divisors (51233329296).

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

25880782704 is a wasteful number, since it uses less digits than its factorization.

25880782704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 51.

The spelling of 25880782704 in words is "twenty-five billion, eight hundred eighty million, seven hundred eighty-two thousand, seven hundred four".