22189495609 has 4 divisors (see below), whose sum is σ = 22954650660. Its totient is φ = 21424340560.

The previous prime is 22189495529. The next prime is 22189495621. The reversal of 22189495609 is 90659498122.

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 4379792400 + 17809703209 = 66180^2 + 133453^2 .

It is a cyclic number.

It is not a de Polignac number, because 22189495609 - 2¹¹ = 22189493561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22189495609.

It is not an unprimeable number, because it can be changed into a prime (22189495109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382577482 + ... + 382577539.

It is an arithmetic number, because the mean of its divisors is an integer number (5738662665).

Almost surely, 2^22189495609 is an apocalyptic number.

22189495609 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22189495609 is a deficient number, since it is larger than the sum of its proper divisors (765155051).

22189495609 is an equidigital number, since it uses as much as digits as its factorization.

22189495609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765155050.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 22189495609 in words is "twenty-two billion, one hundred eighty-nine million, four hundred ninety-five thousand, six hundred nine".