grains of sand on earth
700,500,000,000,000,000,000
atoms in the human body
7,000,000,000,000,000,000,000,000,000
how many seconds has the earth existed
435,355,989,674,234,985,345,394,783,892,394,837,983,847,293,957
number of possible bitcoin addresses
1,461,501,637,330,902,918,203,684,832,716,283,019,655,932,542,976
herb, or is it Herb, why are the first two numbers rounded, and the latter two exact? Is Google going broke and no longer able to support the manpower to count grains of sands resorting to guessing? I wonder if they considered all the sand at the bottom of the oceans. And what about sand mixed in with dirt--multi-racial sand (bet you didn't see that coming)?
One more thing: Herb, meet Dank. <not implying anything, and only penned for added humor>