25866264270 has 256 divisors, whose sum is σ = 81981849600. Its totient is φ = 5059998720.

The previous prime is 25866264239. The next prime is 25866264401. The reversal of 25866264270 is 7246266852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7327866 + ... + 7331394.

It is an arithmetic number, because the mean of its divisors is an integer number (320241600).

Almost surely, 2^25866264270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25866264270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40990924800).

25866264270 is an abundant number, since it is smaller than the sum of its proper divisors (56115585330).

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

25866264270 is a wasteful number, since it uses less digits than its factorization.

25866264270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 25866264270 in words is "twenty-five billion, eight hundred sixty-six million, two hundred sixty-four thousand, two hundred seventy".