25933742660 has 24 divisors (see below), whose sum is σ = 62240982720. Its totient is φ = 8891568864.

The previous prime is 25933742563. The next prime is 25933742687. The reversal of 25933742660 is 6624733952.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92620370 + ... + 92620649.

It is an arithmetic number, because the mean of its divisors is an integer number (2593374280).

Almost surely, 2^25933742660 is an apocalyptic number.

25933742660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25933742660 is an abundant number, since it is smaller than the sum of its proper divisors (36307240060).

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

25933742660 is a wasteful number, since it uses less digits than its factorization.

25933742660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185241035 (or 185241033 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 47.

The spelling of 25933742660 in words is "twenty-five billion, nine hundred thirty-three million, seven hundred forty-two thousand, six hundred sixty".