21842284832 has 24 divisors (see below), whose sum is σ = 43315890156. Its totient is φ = 10841423872.

The previous prime is 21842284829. The next prime is 21842284883. The reversal of 21842284832 is 23848224812.

It can be written as a sum of positive squares in 2 ways, for example, as 21153957136 + 688327696 = 145444^2 + 26236^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2486753 + ... + 2495520.

Almost surely, 2^21842284832 is an apocalyptic number.

It is an amenable number.

21842284832 is a deficient number, since it is larger than the sum of its proper divisors (21473605324).

21842284832 is a wasteful number, since it uses less digits than its factorization.

21842284832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982420 (or 4982412 counting only the distinct ones).

The product of its digits is 393216, while the sum is 44.

The spelling of 21842284832 in words is "twenty-one billion, eight hundred forty-two million, two hundred eighty-four thousand, eight hundred thirty-two".