It is a very large number which would normally be expressed in scientific notation to save writing out all of the noughts.
10000000000000000000000000000000000000000000000000000000
bill gates account balance
The number 10000000000000000000000000000000000000000000000000000000 can be expressed in scientific notation as (1 \times 10^{52}). It is a 1 followed by 52 zeros, which makes it a very large number, specifically referred to as ten duotrigintillion in the short scale numbering system.
It is 10000000000000000000000000000000000000000000000000000000.