73755-_1678837156.mp4 | EXTENDED |

: Apps like Telegram or WhatsApp sometimes rename saved media using internal database IDs and timestamps.

: Platforms that store user-uploaded videos may append a timestamp to the original file ID to prevent overwriting files with the same name. 73755-_1678837156.mp4

The filename appears to be a system-generated or timestamped media file. Based on the components of the name: : Apps like Telegram or WhatsApp sometimes rename