If this is a file you found on your device, it was likely created or downloaded on . Configuration for 'NOT' saving Pictures, Videos, .exe. etc.
: These frequently use a combination of a camera ID and a precise Unix timestamp for each recorded clip. 73755-_1678837156.mp4
: This is likely a unique database ID or sequence number. In some technical contexts, 73755 has been associated with specific video project IDs or forum post identifiers. If this is a file you found on
: Apps like Telegram or WhatsApp sometimes rename saved media using internal database IDs and timestamps. : These frequently use a combination of a
: Platforms that store user-uploaded videos may append a timestamp to the original file ID to prevent overwriting files with the same name.
The filename appears to be a system-generated or timestamped media file. Based on the components of the name: