25939982724 has 12 divisors (see below), whose sum is σ = 60526626384. Its totient is φ = 8646660904.

The previous prime is 25939982711. The next prime is 25939982741. The reversal of 25939982724 is 42728993952.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080832602 + ... + 1080832625.

It is an arithmetic number, because the mean of its divisors is an integer number (5043885532).

Almost surely, 2^25939982724 is an apocalyptic number.

It is an amenable number.

25939982724 is an abundant number, since it is smaller than the sum of its proper divisors (34586643660).

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

25939982724 is a wasteful number, since it uses less digits than its factorization.

25939982724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161665234 (or 2161665232 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 25939982724 in words is "twenty-five billion, nine hundred thirty-nine million, nine hundred eighty-two thousand, seven hundred twenty-four".