25687105676 has 12 divisors (see below), whose sum is σ = 44953957608. Its totient is φ = 12843117792.

The previous prime is 25687105657. The next prime is 25687105681. The reversal of 25687105676 is 67650178652.

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, 49760 + ... + 232056.

It is an arithmetic number, because the mean of its divisors is an integer number (3746163134).

Almost surely, 2^25687105676 is an apocalyptic number.

It is an amenable number.

25687105676 is a deficient number, since it is larger than the sum of its proper divisors (19266851932).

25687105676 is a wasteful number, since it uses less digits than its factorization.

25687105676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217528 (or 217526 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 25687105676 in words is "twenty-five billion, six hundred eighty-seven million, one hundred five thousand, six hundred seventy-six".