25985671008 has 96 divisors (see below), whose sum is σ = 75433099392. Its totient is φ = 7766553600.

The previous prime is 25985671003. The next prime is 25985671013. The reversal of 25985671008 is 80017658952.

It is an interprime number because it is at equal distance from previous prime (25985671003) and next prime (25985671013).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25985671003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91458 + ... + 245633.

It is an arithmetic number, because the mean of its divisors is an integer number (785761452).

Almost surely, 2^25985671008 is an apocalyptic number.

It is an amenable number.

25985671008 is an abundant number, since it is smaller than the sum of its proper divisors (49447428384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25985671008 is a wasteful number, since it uses less digits than its factorization.

25985671008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337188 (or 337180 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 51.

The spelling of 25985671008 in words is "twenty-five billion, nine hundred eighty-five million, six hundred seventy-one thousand, eight".