25768894168 has 64 divisors (see below), whose sum is σ = 53104636800. Its totient is φ = 11673784320.

The previous prime is 25768894127. The next prime is 25768894183. The reversal of 25768894168 is 86149886752.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356868 + ... + 422956.

It is an arithmetic number, because the mean of its divisors is an integer number (829759950).

Almost surely, 2^25768894168 is an apocalyptic number.

It is an amenable number.

25768894168 is an abundant number, since it is smaller than the sum of its proper divisors (27335742632).

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

25768894168 is a wasteful number, since it uses less digits than its factorization.

25768894168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66220 (or 66216 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 64.

The spelling of 25768894168 in words is "twenty-five billion, seven hundred sixty-eight million, eight hundred ninety-four thousand, one hundred sixty-eight".