I found this amusing:

this is showing the amount of storage I have on a particular folder on a network drive. as shown on my windows 10 laptop.

considering the drive itself is only 4 terabyte I don't see how the folder can be taking up, 484 Petrabytes of disk space.

1 petabyte is 1024 terabytes.

see: https://www.google.com/amp/s/searchstorage.techtarget.com/definition/petabyte%3famp=1

found this reply to a similar situation on a Microsoft forum:

https://answers.microsoft.com/en-us/windows/forum/windows_xp-files/the-folder-properties-shows-incorrect-size-in/97d04d65-b5e9-4b75-aa70-f97cb2400f2e

suggesting that it's possibly caused by a virus. personally I think it's more likely to be caused by a bug.