The long string of digits (6132081020754725488) acts as a unique identifier . This ensures that even if two different users upload a video titled "Video," the server can distinguish between them without overwriting data.

Only open files from trusted senders or reputable channels.

While .mp4 files are generally safe, malicious actors can sometimes disguise executable files with double extensions (e.g., file.mp4.exe).

Using tools to view the metadata can sometimes reveal the original creator or the software used to export the video. Common file name extensions in Windows - Microsoft Support

Computer systems and messaging apps use unique identifiers to organize the millions of files uploaded to their servers every day.

The "5" at the beginning is a common prefix used by certain database architectures to categorize the type of media or the specific server cluster where the file is stored.