25448340468 has 96 divisors (see below), whose sum is σ = 63944294400. Its totient is φ = 7848562176.

The previous prime is 25448340461. The next prime is 25448340481. The reversal of 25448340468 is 86404384452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25448340461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3848421 + ... + 3855027.

It is an arithmetic number, because the mean of its divisors is an integer number (666086400).

Almost surely, 2^25448340468 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 25448340468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31972147200).

25448340468 is an abundant number, since it is smaller than the sum of its proper divisors (38495953932).

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

25448340468 is a wasteful number, since it uses less digits than its factorization.

25448340468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949 (or 6947 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 48.

The spelling of 25448340468 in words is "twenty-five billion, four hundred forty-eight million, three hundred forty thousand, four hundred sixty-eight".