25854680164 has 12 divisors (see below), whose sum is σ = 45255725424. Its totient is φ = 12924472904.

The previous prime is 25854680153. The next prime is 25854680227. The reversal of 25854680164 is 46108645852.

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, 696442 + ... + 732625.

It is an arithmetic number, because the mean of its divisors is an integer number (3771310452).

Almost surely, 2^25854680164 is an apocalyptic number.

It is an amenable number.

25854680164 is a deficient number, since it is larger than the sum of its proper divisors (19401045260).

25854680164 is a wasteful number, since it uses less digits than its factorization.

25854680164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433594 (or 1433592 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 49.

The spelling of 25854680164 in words is "twenty-five billion, eight hundred fifty-four million, six hundred eighty thousand, one hundred sixty-four".