25800668348 has 72 divisors (see below), whose sum is σ = 56880003600. Its totient is φ = 10149656832.

The previous prime is 25800668321. The next prime is 25800668359. The reversal of 25800668348 is 84386600852.

It is a junction number, because it is equal to n+sod(n) for n = 25800668296 and 25800668305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427808 + ... + 484376.

It is an arithmetic number, because the mean of its divisors is an integer number (790000050).

Almost surely, 2^25800668348 is an apocalyptic number.

25800668348 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 25800668348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28440001800).

25800668348 is an abundant number, since it is smaller than the sum of its proper divisors (31079335252).

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

25800668348 is a wasteful number, since it uses less digits than its factorization.

25800668348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56779 (or 56770 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 25800668348 in words is "twenty-five billion, eight hundred million, six hundred sixty-eight thousand, three hundred forty-eight".