25806769296 has 160 divisors (see below), whose sum is σ = 83975958528. Its totient is φ = 6633861120.

The previous prime is 25806769249. The next prime is 25806769319. The reversal of 25806769296 is 69296760852.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322521 + ... + 394503.

Almost surely, 2^25806769296 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 25806769296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41987979264).

25806769296 is an abundant number, since it is smaller than the sum of its proper divisors (58169189232).

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

25806769296 is a wasteful number, since it uses less digits than its factorization.

25806769296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72109 (or 72103 counting only the distinct ones).

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

The spelling of 25806769296 in words is "twenty-five billion, eight hundred six million, seven hundred sixty-nine thousand, two hundred ninety-six".