25468231040 has 128 divisors (see below), whose sum is σ = 71827845120. Its totient is φ = 8450242560.

The previous prime is 25468231013. The next prime is 25468231043. The reversal of 25468231040 is 4013286452.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25468231043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47189 + ... + 230571.

It is an arithmetic number, because the mean of its divisors is an integer number (561155040).

Almost surely, 2^25468231040 is an apocalyptic number.

25468231040 is a gapful number since it is divisible by the number (20) 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 25468231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35913922560).

25468231040 is an abundant number, since it is smaller than the sum of its proper divisors (46359614080).

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

25468231040 is a wasteful number, since it uses less digits than its factorization.

25468231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183440 (or 183428 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 25468231040 in words is "twenty-five billion, four hundred sixty-eight million, two hundred thirty-one thousand, forty".