25989211136 has 132 divisors (see below), whose sum is σ = 61466497200. Its totient is φ = 10948202496.

The previous prime is 25989211121. The next prime is 25989211141. The reversal of 25989211136 is 63111298952.

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, 2955995 + ... + 2964773.

Almost surely, 2^25989211136 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 25989211136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30733248600).

25989211136 is an abundant number, since it is smaller than the sum of its proper divisors (35477286064).

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

25989211136 is an equidigital number, since it uses as much as digits as its factorization.

25989211136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8872 (or 8847 counting only the distinct ones).

The product of its digits is 233280, while the sum is 47.

The spelling of 25989211136 in words is "twenty-five billion, nine hundred eighty-nine million, two hundred eleven thousand, one hundred thirty-six".