22284281636 has 12 divisors (see below), whose sum is σ = 39531705612. Its totient is φ = 10989508608.

The previous prime is 22284281627. The next prime is 22284281641. The reversal of 22284281636 is 63618248222.

It can be written as a sum of positive squares in 2 ways, for example, as 9052380736 + 13231900900 = 95144^2 + 115030^2 .

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, 38157725 + ... + 38158308.

It is an arithmetic number, because the mean of its divisors is an integer number (3294308801).

Almost surely, 2^22284281636 is an apocalyptic number.

It is an amenable number.

22284281636 is a deficient number, since it is larger than the sum of its proper divisors (17247423976).

22284281636 is a wasteful number, since it uses less digits than its factorization.

22284281636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76316110 (or 76316108 counting only the distinct ones).

The product of its digits is 442368, while the sum is 44.

The spelling of 22284281636 in words is "twenty-two billion, two hundred eighty-four million, two hundred eighty-one thousand, six hundred thirty-six".