By reversing the order of digits of the greatest number made by five different non-zero digits, the new number is the ____ number of five digits.
smallest
Step 1: To get the greatest 5-digit number using five different non-zero digits, choose the biggest digits and write them from largest to smallest.
Digits: \(9, 8, 7, 6, 5\)
Greatest number: \(98765\)
Step 2: Reverse the order (write it from right to left).
Reverse of \(98765\) is \(56789\)
Step 3: When the digits are in increasing order, the number is the smallest possible with those digits.
So, \(56789\) is the smallest 5-digit number made from these digits.
Conclusion: After reversing, we get the smallest 5-digit number.