21883579392 has 198 divisors, whose sum is σ = 62357752812. Its totient is φ = 6821707776.

The previous prime is 21883579391. The next prime is 21883579411. The reversal of 21883579392 is 29397538812.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21883579391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 139385778 + ... + 139385934.

Almost surely, 2^21883579392 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 21883579392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31178876406).

21883579392 is an abundant number, since it is smaller than the sum of its proper divisors (40474173420).

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

21883579392 is an equidigital number, since it uses as much as digits as its factorization.

21883579392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 179 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The spelling of 21883579392 in words is "twenty-one billion, eight hundred eighty-three million, five hundred seventy-nine thousand, three hundred ninety-two".