Question

How many atoms are in the universe?

Answer 1

Hello there.

How many atoms are in the universe?
$10^{78}$

Answer 2

At this level, it is estimated that the there are between 1078 to 1082 atoms in the known, observable universe. In layman's terms, that works out to between ten quadrillion invigilation and one-hundred thousand quadrillion invigilation atoms.