25918684792 has 256 divisors, whose sum is σ = 67125703680. Its totient is φ = 9057484800.

The previous prime is 25918684733. The next prime is 25918684801. The reversal of 25918684792 is 29748681952.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a self number, because there is not a number n which added to its sum of digits gives 25918684792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47383063 + ... + 47383609.

It is an arithmetic number, because the mean of its divisors is an integer number (262209780).

Almost surely, 2^25918684792 is an apocalyptic number.

25918684792 is a gapful number since it is divisible by the number (22) 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 25918684792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33562851840).

25918684792 is an abundant number, since it is smaller than the sum of its proper divisors (41207018888).

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

25918684792 is a wasteful number, since it uses less digits than its factorization.

25918684792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 738 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 61.

The spelling of 25918684792 in words is "twenty-five billion, nine hundred eighteen million, six hundred eighty-four thousand, seven hundred ninety-two".