25800677448 has 256 divisors, whose sum is σ = 85349376000. Its totient is φ = 6308803584.

The previous prime is 25800677447. The next prime is 25800677479. The reversal of 25800677448 is 84477600852.

It is a self number, because there is not a number n which added to its sum of digits gives 25800677448.

It is not an unprimeable number, because it can be changed into a prime (25800677447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1943698 + ... + 1956926.

It is an arithmetic number, because the mean of its divisors is an integer number (333396000).

Almost surely, 2^25800677448 is an apocalyptic number.

25800677448 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 25800677448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42674688000).

25800677448 is an abundant number, since it is smaller than the sum of its proper divisors (59548698552).

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

25800677448 is a wasteful number, since it uses less digits than its factorization.

25800677448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13324 (or 13320 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 25800677448 in words is "twenty-five billion, eight hundred million, six hundred seventy-seven thousand, four hundred forty-eight".