25231868886 has 64 divisors (see below), whose sum is σ = 58726305792. Its totient is φ = 7078132512.

The previous prime is 25231868873. The next prime is 25231868897. The reversal of 25231868886 is 68886813252.

It is a congruent number.

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, 849295 + ... + 878501.

It is an arithmetic number, because the mean of its divisors is an integer number (917598528).

Almost surely, 2^25231868886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25231868886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29363152896).

25231868886 is an abundant number, since it is smaller than the sum of its proper divisors (33494436906).

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

25231868886 is a wasteful number, since it uses less digits than its factorization.

25231868886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29593.

The product of its digits is 8847360, while the sum is 57.

The spelling of 25231868886 in words is "twenty-five billion, two hundred thirty-one million, eight hundred sixty-eight thousand, eight hundred eighty-six".