22224446789 has 4 divisors (see below), whose sum is σ = 22373604300. Its totient is φ = 22075289280.

The previous prime is 22224446731. The next prime is 22224446791. The reversal of 22224446789 is 98764442222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4093824289 + 18130622500 = 63983^2 + 134650^2 .

It is a cyclic number.

It is not a de Polignac number, because 22224446789 - 2¹² = 22224442693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224446689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74578532 + ... + 74578829.

It is an arithmetic number, because the mean of its divisors is an integer number (5593401075).

Almost surely, 2^22224446789 is an apocalyptic number.

It is an amenable number.

22224446789 is a deficient number, since it is larger than the sum of its proper divisors (149157511).

22224446789 is a wasteful number, since it uses less digits than its factorization.

22224446789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149157510.

The product of its digits is 3096576, while the sum is 50.

The spelling of 22224446789 in words is "twenty-two billion, two hundred twenty-four million, four hundred forty-six thousand, seven hundred eighty-nine".