If it's from a specific catalog or website, that context would be very helpful.
Check the file’s actual duration using ffprobe (command-line) or by opening in VLC (Ctrl+I for info). If the duration matches 01:49:28, then the filename simply encodes that. adn267 engsub014928 min
The origins of ADN267 Engsub014928 Min are unclear, but based on its structure, it's likely related to online media content. Here are a few possibilities: If it's from a specific catalog or website,
The text "adn267 engsub014928 min" refers to the Japanese adult video " but based on its structure