There is currently no mechanism to display the full number of digits when there are a large number of records at an output pin other than to hover the mouse over the pin. The abbreviated total is show to prevent display issues with large numbers. We do have a roadmap candidate to provide the option to show the exact record count but this is not currently targeted for delivery in a particular release.
If you need to programatically validate the number of records is the same at two points in the data flow you can use an Aggregate node to count the records, combine the two values using a Lookup node and then use a Transform node to compare the values and generate an error if they are different.