25927340544 has 800 divisors, whose sum is σ = 94811836416. Its totient is φ = 6897623040.

The previous prime is 25927340539. The next prime is 25927340563. The reversal of 25927340544 is 44504372952.

25927340544 is a `hidden beast` number, since 2 + 59 + 27 + 34 + 0 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25927340544.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 386975199 + ... + 386975265.

Almost surely, 2^25927340544 is an apocalyptic number.

25927340544 is a gapful number since it is divisible by the number (24) 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 25927340544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47405918208).

25927340544 is an abundant number, since it is smaller than the sum of its proper divisors (68884495872).

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

25927340544 is an equidigital number, since it uses as much as digits as its factorization.

25927340544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 25927340544 in words is "twenty-five billion, nine hundred twenty-seven million, three hundred forty thousand, five hundred forty-four".