That is National Debt of the United States of America as of June 2021 according to USDebtClock.org. It breached the $28 Trillion mark in March 2021. To put it in perspective, that amount($28 trillion) if distributed to every single person in the world(7.8 billion approx.), we will end up giving close to $3600 per person!
The Snippets Journal
By Shreesha