25880362944 has 112 divisors (see below), whose sum is σ = 68898211200. Its totient is φ = 8573694976.

The previous prime is 25880362943. The next prime is 25880362951. The reversal of 25880362944 is 44926308852.

It is a happy number.

It is a super-2 number, since 2×25880362944² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25880362943) 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, 31293859 + ... + 31294685.

It is an arithmetic number, because the mean of its divisors is an integer number (615162600).

Almost surely, 2^25880362944 is an apocalyptic number.

25880362944 is a gapful number since it is divisible by the number (24) 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 25880362944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34449105600).

25880362944 is an abundant number, since it is smaller than the sum of its proper divisors (43017848256).

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

25880362944 is a wasteful number, since it uses less digits than its factorization.

25880362944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 25880362944 in words is "twenty-five billion, eight hundred eighty million, three hundred sixty-two thousand, nine hundred forty-four".