25950918888 has 128 divisors (see below), whose sum is σ = 75161088000. Its totient is φ = 8286001920.

The previous prime is 25950918841. The next prime is 25950918911. The reversal of 25950918888 is 88881905952.

It is a super-2 number, since 2×25950918888² (a number of 22 digits) contains 22 as substring.

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, 779218 + ... + 811838.

It is an arithmetic number, because the mean of its divisors is an integer number (587196000).

Almost surely, 2^25950918888 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 25950918888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37580544000).

25950918888 is an abundant number, since it is smaller than the sum of its proper divisors (49210169112).

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

25950918888 is a wasteful number, since it uses less digits than its factorization.

25950918888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32792 (or 32782 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 63.

The spelling of 25950918888 in words is "twenty-five billion, nine hundred fifty million, nine hundred eighteen thousand, eight hundred eighty-eight".