A 9-digit number is a number that has 9 digits where the first digit must be 1 or greater. On this page, we will answer three questions for you: What is the smallest 9-digit number? What is the largest 9-digit number? How many 9-digit numbers are there?

**Smallest 9-digit number**

The smallest 9-digit number is 1 followed by 8 zeros. This number is called one hundred million.

**Largest 9-digit number**

The largest 9-digit number is 9 followed by another 8 nines. This number is called nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine.

**Total number of 9-digit numbers**

There are a total of nine hundred million different 9-digit numbers. nine hundred million is 9 followed by 8 zeros.

**Digit Numbers**

Here you can learn about another digit number.

**What is a 10-digit number?**

Go here for information about the next digit number on our list that we have information about.

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