26828336288 has 72 divisors (see below), whose sum is σ = 57978095868. Its totient is φ = 12212508672.

The previous prime is 26828336279. The next prime is 26828336291. The reversal of 26828336288 is 88263382862.

It can be written as a sum of positive squares in 6 ways, for example, as 458473744 + 26369862544 = 21412^2 + 162388^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 360806 + ... + 428762.

Almost surely, 2^26828336288 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 26828336288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28989047934).

26828336288 is an abundant number, since it is smaller than the sum of its proper divisors (31149759580).

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

26828336288 is a wasteful number, since it uses less digits than its factorization.

26828336288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68066 (or 68045 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 56.

The spelling of 26828336288 in words is "twenty-six billion, eight hundred twenty-eight million, three hundred thirty-six thousand, two hundred eighty-eight".