25821938008 has 16 divisors (see below), whose sum is σ = 48417838560. Its totient is φ = 12910514400.

The previous prime is 25821937927. The next prime is 25821938081. The reversal of 25821938008 is 80083912852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415953 + ... + 473983.

It is an arithmetic number, because the mean of its divisors is an integer number (3026114910).

Almost surely, 2^25821938008 is an apocalyptic number.

It is an amenable number.

25821938008 is a deficient number, since it is larger than the sum of its proper divisors (22595900552).

25821938008 is a wasteful number, since it uses less digits than its factorization.

25821938008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113658 (or 113654 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 25821938008 in words is "twenty-five billion, eight hundred twenty-one million, nine hundred thirty-eight thousand, eight".