21943812882 has 16 divisors (see below), whose sum is σ = 44222647392. Its totient is φ = 7258767360.

The previous prime is 21943812871. The next prime is 21943812907. The reversal of 21943812882 is 28821834912.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13958383 + ... + 13959954.

It is an arithmetic number, because the mean of its divisors is an integer number (2763915462).

Almost surely, 2^21943812882 is an apocalyptic number.

21943812882 is an abundant number, since it is smaller than the sum of its proper divisors (22278834510).

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

21943812882 is a wasteful number, since it uses less digits than its factorization.

21943812882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27918473.

The product of its digits is 442368, while the sum is 48.

The spelling of 21943812882 in words is "twenty-one billion, nine hundred forty-three million, eight hundred twelve thousand, eight hundred eighty-two".