22195934289 has 27 divisors (see below), whose sum is σ = 32712039633. Its totient is φ = 14502601152.

The previous prime is 22195934279. The next prime is 22195934297. The reversal of 22195934289 is 98243959122.

The square root of 22195934289 is 148983.

It is a perfect power (a square), and thus also a powerful number.

22195934289 is a `hidden beast` number, since 2 + 2 + 1 + 9 + 593 + 42 + 8 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2264141889 + 19931792400 = 47583^2 + 141180^2 .

It is not a de Polignac number, because 22195934289 - 2³³ = 13605999697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22195934219) 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 26 ways as a sum of consecutive naturals, for example, 23687829 + ... + 23688765.

Almost surely, 2^22195934289 is an apocalyptic number.

22195934289 is the 148983-rd square number.

22195934289 is the 74492-nd centered octagonal number.

It is an amenable number.

22195934289 is a deficient number, since it is larger than the sum of its proper divisors (10516105344).

22195934289 is an frugal number, since it uses more digits than its factorization.

22195934289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 993 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

It can be divided in two parts, 22195 and 934289, that added together give a square (956484 = 978²).

The spelling of 22195934289 in words is "twenty-two billion, one hundred ninety-five million, nine hundred thirty-four thousand, two hundred eighty-nine".