25587323611872 has 192 divisors, whose sum is σ = 74375757792000. Its totient is φ = 7637047418880.

The previous prime is 25587323611831. The next prime is 25587323611951. The reversal of 25587323611872 is 27811632378552.

It is a super-2 number, since 2×25587323611872² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 727949754 + ... + 727984902.

It is an arithmetic number, because the mean of its divisors is an integer number (387373738500).

Almost surely, 2^{25587323611872} is an apocalyptic number.

25587323611872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25587323611872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37187878896000).

25587323611872 is an abundant number, since it is smaller than the sum of its proper divisors (48788434180128).

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

25587323611872 is a wasteful number, since it uses less digits than its factorization.

25587323611872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45529 (or 45521 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 60.

The spelling of 25587323611872 in words is "twenty-five trillion, five hundred eighty-seven billion, three hundred twenty-three million, six hundred eleven thousand, eight hundred seventy-two".