What is 10 to the 9th power?

10 to the 9th power is equal to 1 billion, written as 1,000,000,000. This is obtained by multiplying 10 by itself 9 times. This number is often used to represent very large quantities, such as the number of people in the world, the amount of money in some economies, or the number of cells in the human body. It is also commonly used in scientific notation to represent large numbers.