Unless you’ve changed it the default/standard https port in production is 443.
I recommend you leave it at that unless you have a specific reason to change it.
Changing it will also require you to configure your server appropriately and nginx server configuration is beyond the scope of our support.
You can search for (google) “changing nginx https port on linux” online for more resources on how to do it correctly.
If this doesn’t answer your question please provide more context/details/error description/logs.