25708928875 has 32 divisors (see below), whose sum is σ = 36694794240. Its totient is φ = 17616232800.

The previous prime is 25708928813. The next prime is 25708928909. The reversal of 25708928875 is 57882980752.

It is not a de Polignac number, because 25708928875 - 2¹¹ = 25708926827 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1291246 + ... + 1311004.

It is an arithmetic number, because the mean of its divisors is an integer number (1146712320).

Almost surely, 2^25708928875 is an apocalyptic number.

25708928875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25708928875 is a deficient number, since it is larger than the sum of its proper divisors (10985865365).

25708928875 is a wasteful number, since it uses less digits than its factorization.

25708928875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21268 (or 21258 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 61.

The spelling of 25708928875 in words is "twenty-five billion, seven hundred eight million, nine hundred twenty-eight thousand, eight hundred seventy-five".