25813692368 has 20 divisors (see below), whose sum is σ = 50030160960. Its totient is φ = 12902683104.

The previous prime is 25813692341. The next prime is 25813692371. The reversal of 25813692368 is 86329631852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208730 + ... + 308537.

It is an arithmetic number, because the mean of its divisors is an integer number (2501508048).

Almost surely, 2^25813692368 is an apocalyptic number.

It is an amenable number.

25813692368 is a deficient number, since it is larger than the sum of its proper divisors (24216468592).

25813692368 is a wasteful number, since it uses less digits than its factorization.

25813692368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520394 (or 520388 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The spelling of 25813692368 in words is "twenty-five billion, eight hundred thirteen million, six hundred ninety-two thousand, three hundred sixty-eight".