The filename appears to be an automatically generated name from a mobile device (likely a Xiaomi, POCO, or Redmi phone), where the numbers typically represent a date and timestamp [1, 2]. Because this is a private file name rather than a viral public video, there is no single "official" website to download it from.

Open your "File Manager" app and search for the exact string 51740226 . It is likely located in /DCIM/Camera/ or /Movies/ .

Check Google Photos or Mi Cloud . Search for the date (February 26, 2024, based on the filename structure) to see if it was automatically backed up. 3. If you found the link on a website