That number seems pretty human-readable to me. An unfriendly number would be 187289840422780.00. To add commas, you could create your own function or search for one (I found this):
import re
def comma_me(amount):
orig = amount
new = re.sub("^(-?\d+)(\d{3})", '\g<1>,\g<2>', amount)
if orig == new:
return new
else:
return comma_me(new)
f = 12345678
print comma_me(`f`)
Output: 12,345,678
If you want to round a number to make it more readable, there is a python function for that: round().
You could move even further away from the actual data and say "A very high amount" or "Above 100 trillion" using a function that would return a different value based on your programmed benchmarks.