: Apps like Telegram or WhatsApp sometimes rename saved media using internal database IDs and timestamps.
: 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. 73755-_1678837156.mp4
: These frequently use a combination of a camera ID and a precise Unix timestamp for each recorded clip. : Apps like Telegram or WhatsApp sometimes rename