Most numerical filenames are not chosen by humans but are generated by .
Because it is an international standard (ISO/IEC 14496-14), it can be played on almost any modern device, from smartphones to smart TVs. The Hidden Data: Metadata Default File Name - GoPro Support 26599.mp4
Below is an essay exploring the context of such files and the technical significance of the MP4 format. The Anatomy of an Unnamed File: Understanding "26599.mp4" Most numerical filenames are not chosen by humans