21832841826 has 24 divisors (see below), whose sum is σ = 47472845004. Its totient is φ = 7251713280.

The previous prime is 21832841773. The next prime is 21832841903. The reversal of 21832841826 is 62814823812.

21832841826 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20430414225 + 1402427601 = 142935^2 + 37449^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2153191 + ... + 2163306.

Almost surely, 2^21832841826 is an apocalyptic number.

21832841826 is an abundant number, since it is smaller than the sum of its proper divisors (25640003178).

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

21832841826 is a wasteful number, since it uses less digits than its factorization.

21832841826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316786 (or 4316783 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The spelling of 21832841826 in words is "twenty-one billion, eight hundred thirty-two million, eight hundred forty-one thousand, eight hundred twenty-six".