seventy-eight vs large integer

seventy-eight and large integer both are nouns.

Word	Noun	Adjective	Verb	Adverb
seventy-eight	Yes	Yes	No	No
large integer	Yes	No	No	No

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

seventy-eight (noun)	large integer (noun)
a shellac based phonograph record that played at 78 revolutions per minute	an integer equal to or greater than ten
the cardinal number that is the sum of seventy and eight

seventy-eight (adjective)	large integer (adjective)
being eight more than seventy