22387818364 has 24 divisors (see below), whose sum is σ = 42604485840. Its totient is φ = 10250701056.

The previous prime is 22387818353. The next prime is 22387818403. The reversal of 22387818364 is 46381878322.

It is a happy number.

It is a super-2 number, since 2×22387818364² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4446574 + ... + 4451605.

It is an arithmetic number, because the mean of its divisors is an integer number (1775186910).

Almost surely, 2^22387818364 is an apocalyptic number.

It is an amenable number.

22387818364 is a deficient number, since it is larger than the sum of its proper divisors (20216667476).

22387818364 is a wasteful number, since it uses less digits than its factorization.

22387818364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8898237 (or 8898235 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 52.

It can be divided in two parts, 223878 and 18364, that added together give a palindrome (242242).

The spelling of 22387818364 in words is "twenty-two billion, three hundred eighty-seven million, eight hundred eighteen thousand, three hundred sixty-four".