25827443712 has 198 divisors, whose sum is σ = 86753403438. Its totient is φ = 7379140608.

The previous prime is 25827443699. The next prime is 25827443731. The reversal of 25827443712 is 21734472852.

25827443712 is a `hidden beast` number, since 2 + 5 + 8 + 274 + 4 + 371 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25365021696 + 462422016 = 159264^2 + 21504^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 422988 + ... + 480180.

Almost surely, 2^25827443712 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 25827443712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43376701719).

25827443712 is an abundant number, since it is smaller than the sum of its proper divisors (60925959726).

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

25827443712 is a wasteful number, since it uses less digits than its factorization.

25827443712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57233 (or 57205 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The spelling of 25827443712 in words is "twenty-five billion, eight hundred twenty-seven million, four hundred forty-three thousand, seven hundred twelve".