8189338289 has 4 divisors (see below), whose sum is σ = 8933823600. Its totient is φ = 7444852980.

The previous prime is 8189338273. The next prime is 8189338331. The reversal of 8189338289 is 9828339818.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8189338289 - 2⁴ = 8189338273 is a prime.

It is a super-2 number, since 2×8189338289² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8189338229) 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, 372242639 + ... + 372242660.

It is an arithmetic number, because the mean of its divisors is an integer number (2233455900).

Almost surely, 2^8189338289 is an apocalyptic number.

It is an amenable number.

8189338289 is a deficient number, since it is larger than the sum of its proper divisors (744485311).

8189338289 is a wasteful number, since it uses less digits than its factorization.

8189338289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744485310.

The product of its digits is 5971968, while the sum is 59.

The square root of 8189338289 is about 90494.9627824665. The cubic root of 8189338289 is about 2015.6553263819.

The spelling of 8189338289 in words is "eight billion, one hundred eighty-nine million, three hundred thirty-eight thousand, two hundred eighty-nine".