seventeen vs large integer

seventeen and large integer both are nouns.

Word	Noun	Adjective	Verb	Adverb
seventeen	Yes	Yes	No	No
large integer	Yes	No	No	No

As nouns, large integer is a hypernym of seventeen; that is, large integer is a word with a broader meaning than seventeen:

seventeen (noun)	large integer (noun)
the cardinal number that is the sum of sixteen and one	an integer equal to or greater than ten

seventeen (adjective)	large integer (adjective)
being one more than sixteen