25644233434260 has 288 divisors, whose sum is σ = 87939972570240. Its totient is φ = 5551970522112.

The previous prime is 25644233434159. The next prime is 25644233434291. The reversal of 25644233434260 is 6243433244652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 310372714 + ... + 310455326.

It is an arithmetic number, because the mean of its divisors is an integer number (305347126980).

Almost surely, 2^{25644233434260} is an apocalyptic number.

25644233434260 is a gapful number since it is divisible by the number (20) 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 25644233434260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43969986285120).

25644233434260 is an abundant number, since it is smaller than the sum of its proper divisors (62295739135980).

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

25644233434260 is a wasteful number, since it uses less digits than its factorization.

25644233434260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88215 (or 88206 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 48.

The spelling of 25644233434260 in words is "twenty-five trillion, six hundred forty-four billion, two hundred thirty-three million, four hundred thirty-four thousand, two hundred sixty".