25426366344 has 128 divisors (see below), whose sum is σ = 71950032000. Its totient is φ = 8318391552.

The previous prime is 25426366331. The next prime is 25426366349. The reversal of 25426366344 is 44366362452.

25426366344 is a `hidden beast` number, since 2 + 5 + 4 + 2 + 6 + 3 + 6 + 634 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25426366344.

It is not an unprimeable number, because it can be changed into a prime (25426366349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2514162 + ... + 2524254.

It is an arithmetic number, because the mean of its divisors is an integer number (562109625).

Almost surely, 2^25426366344 is an apocalyptic number.

25426366344 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 25426366344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35975016000).

25426366344 is an abundant number, since it is smaller than the sum of its proper divisors (46523665656).

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

25426366344 is a wasteful number, since it uses less digits than its factorization.

25426366344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324 (or 10314 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 45.

The spelling of 25426366344 in words is "twenty-five billion, four hundred twenty-six million, three hundred sixty-six thousand, three hundred forty-four".