25385947868 has 12 divisors (see below), whose sum is σ = 44582391000. Its totient is φ = 12648121872.

The previous prime is 25385947801. The next prime is 25385947871. The reversal of 25385947868 is 86874958352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11211743 + ... + 11214006.

It is an arithmetic number, because the mean of its divisors is an integer number (3715199250).

Almost surely, 2^25385947868 is an apocalyptic number.

It is an amenable number.

25385947868 is a deficient number, since it is larger than the sum of its proper divisors (19196443132).

25385947868 is a wasteful number, since it uses less digits than its factorization.

25385947868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22426036 (or 22426034 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 65.

The spelling of 25385947868 in words is "twenty-five billion, three hundred eighty-five million, nine hundred forty-seven thousand, eight hundred sixty-eight".