25891327412832 has 384 divisors, whose sum is σ = 81125724524544. Its totient is φ = 7077682741248.

The previous prime is 25891327412777. The next prime is 25891327412903. The reversal of 25891327412832 is 23821472319852.

25891327412832 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 260486728 + ... + 260586104.

It is an arithmetic number, because the mean of its divisors is an integer number (211264907616).

Almost surely, 2^{25891327412832} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25891327412832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40562862262272).

25891327412832 is an abundant number, since it is smaller than the sum of its proper divisors (55234397111712).

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

25891327412832 is a wasteful number, since it uses less digits than its factorization.

25891327412832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99630 (or 99622 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 25891327412832 in words is "twenty-five trillion, eight hundred ninety-one billion, three hundred twenty-seven million, four hundred twelve thousand, eight hundred thirty-two".