25278880848 has 320 divisors, whose sum is σ = 75595161600. Its totient is φ = 7219390464.

The previous prime is 25278880831. The next prime is 25278880867. The reversal of 25278880848 is 84808887252.

It is a junction number, because it is equal to n+sod(n) for n = 25278880791 and 25278880800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 127029453 + ... + 127029651.

It is an arithmetic number, because the mean of its divisors is an integer number (236234880).

Almost surely, 2^25278880848 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 25278880848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37797580800).

25278880848 is an abundant number, since it is smaller than the sum of its proper divisors (50316280752).

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

25278880848 is a wasteful number, since it uses less digits than its factorization.

25278880848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 18350080, while the sum is 60.

The spelling of 25278880848 in words is "twenty-five billion, two hundred seventy-eight million, eight hundred eighty thousand, eight hundred forty-eight".