25706578848 has 96 divisors (see below), whose sum is σ = 69187608000. Its totient is φ = 8352368640.

The previous prime is 25706578829. The next prime is 25706578853. The reversal of 25706578848 is 84887560752.

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

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25706578791 and 25706578800.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5897886 + ... + 5902242.

It is an arithmetic number, because the mean of its divisors is an integer number (720704250).

Almost surely, 2^25706578848 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 25706578848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34593804000).

25706578848 is an abundant number, since it is smaller than the sum of its proper divisors (43481029152).

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

25706578848 is a wasteful number, since it uses less digits than its factorization.

25706578848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910 (or 5902 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 60.

The spelling of 25706578848 in words is "twenty-five billion, seven hundred six million, five hundred seventy-eight thousand, eight hundred forty-eight".