How many collectibles are there in gta v single player?

The only source supplied is a Wikipedia entry about Grand Theft Auto Online, which is the multiplayer component of Grand Theft Auto V. This entry discusses the game's release dates, platform availability, and general gameplay mechanics, but it does not mention collectibles, single‑player content, or any numerical data regarding items to collect. Because that specific information is absent from the evidence, I cannot provide a reliable answer to the question about how many collectibles exist in GTA V single player.