26561787224 has 32 divisors (see below), whose sum is σ = 60266242080. Its totient is φ = 10713997824.

The previous prime is 26561787211. The next prime is 26561787281. The reversal of 26561787224 is 42278716562.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13949567 + ... + 13951470.

It is an arithmetic number, because the mean of its divisors is an integer number (1883320065).

Almost surely, 2^26561787224 is an apocalyptic number.

It is an amenable number.

26561787224 is an abundant number, since it is smaller than the sum of its proper divisors (33704454856).

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

26561787224 is a wasteful number, since it uses less digits than its factorization.

26561787224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27901067 (or 27901063 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The spelling of 26561787224 in words is "twenty-six billion, five hundred sixty-one million, seven hundred eighty-seven thousand, two hundred twenty-four".