Today the UK & global banking giant pays out its April dividend
$0.36 = 27.3198p a share
https://www.londonstockexchange.com/news-article/HSBA/total-voting-rights/16966785
The total number of voting rights in HSBC Holdings plc is 17,750,456,690
Thus:-
17,750,456,690 x £0.273198 = £4,849,389,266.79462
that is £4.84938926679462 Billion paid to shareholders
https://www.londonstockexchange.com/stock/HSBA/hsbc-holdings-plc/company-page