As the Quora website states, this question requires clarification. Which Pyramid Text are you referring to? Whose translation of the texts mentions "N."? Which publication did you read it in? If you can link to a particular text in which it appears, that would be extremely helpful. As it is, since we don't know if you're mistaking an external notation (e.g. "number") for a name, or if "N." is used in a particular context indicating a person or a god, or if you're reading someone's abridged notes (and thus it's spelled out in other translations), we don't have enough information to be able to answer the question properly. There are a lot of various god names that start with N.