26805443328 has 216 divisors, whose sum is σ = 84658392000. Its totient is φ = 8119222272.

The previous prime is 26805443321. The next prime is 26805443359. The reversal of 26805443328 is 82334450862.

26805443328 is a `hidden beast` number, since 2 + 6 + 80 + 544 + 3 + 3 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (26805443321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1124073 + ... + 1147671.

It is an arithmetic number, because the mean of its divisors is an integer number (391937000).

Almost surely, 2^26805443328 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 26805443328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42329196000).

26805443328 is an abundant number, since it is smaller than the sum of its proper divisors (57852948672).

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

26805443328 is a wasteful number, since it uses less digits than its factorization.

26805443328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23667 (or 23650 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 26805443328 in words is "twenty-six billion, eight hundred five million, four hundred forty-three thousand, three hundred twenty-eight".