25786648608 has 192 divisors, whose sum is σ = 81578327040. Its totient is φ = 6967268352.

The previous prime is 25786648583. The next prime is 25786648631. The reversal of 25786648608 is 80684668752.

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, 8719066 + ... + 8722022.

It is an arithmetic number, because the mean of its divisors is an integer number (424887120).

Almost surely, 2^25786648608 is an apocalyptic number.

25786648608 is a gapful number since it is divisible by the number (28) 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 25786648608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40789163520).

25786648608 is an abundant number, since it is smaller than the sum of its proper divisors (55791678432).

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

25786648608 is a wasteful number, since it uses less digits than its factorization.

25786648608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679 (or 3671 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 25786648608 in words is "twenty-five billion, seven hundred eighty-six million, six hundred forty-eight thousand, six hundred eight".