26565334432 has 144 divisors (see below), whose sum is σ = 66814336512. Its totient is φ = 10169902080.

The previous prime is 26565334423. The next prime is 26565334451. The reversal of 26565334432 is 23443356562.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1162218 + ... + 1184854.

It is an arithmetic number, because the mean of its divisors is an integer number (463988448).

Almost surely, 2^26565334432 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 26565334432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33407168256).

26565334432 is an abundant number, since it is smaller than the sum of its proper divisors (40249002080).

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

26565334432 is a wasteful number, since it uses less digits than its factorization.

26565334432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22711 (or 22690 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 43.

The spelling of 26565334432 in words is "twenty-six billion, five hundred sixty-five million, three hundred thirty-four thousand, four hundred thirty-two".