9992278189 has 2 divisors, whose sum is σ = 9992278190. Its totient is φ = 9992278188.

The previous prime is 9992278151. The next prime is 9992278199. The reversal of 9992278189 is 9818722999.

9992278189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8077515625 + 1914762564 = 89875^2 + 43758^2 .

It is an emirp because it is prime and its reverse (9818722999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9992278189 - 2¹¹ = 9992276141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9992278189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9992278129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996139094 + 4996139095.

It is an arithmetic number, because the mean of its divisors is an integer number (4996139095).

Almost surely, 2^9992278189 is an apocalyptic number.

It is an amenable number.

9992278189 is a deficient number, since it is larger than the sum of its proper divisors (1).

9992278189 is an equidigital number, since it uses as much as digits as its factorization.

9992278189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 64.

The square root of 9992278189 is about 99961.3834888253. The cubic root of 9992278189 is about 2153.8800093198.

The spelling of 9992278189 in words is "nine billion, nine hundred ninety-two million, two hundred seventy-eight thousand, one hundred eighty-nine".