25745728896 has 96 divisors (see below), whose sum is σ = 74144244720. Its totient is φ = 8575165440.

The previous prime is 25745728889. The next prime is 25745728913. The reversal of 25745728896 is 69882754752.

25745728896 is a `hidden beast` number, since 2 + 57 + 4 + 572 + 8 + 8 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1582821 + ... + 1599003.

Almost surely, 2^25745728896 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 25745728896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37072122360).

25745728896 is an abundant number, since it is smaller than the sum of its proper divisors (48398515824).

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

25745728896 is a wasteful number, since it uses less digits than its factorization.

25745728896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17584 (or 17569 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 63.

The spelling of 25745728896 in words is "twenty-five billion, seven hundred forty-five million, seven hundred twenty-eight thousand, eight hundred ninety-six".