Unit  Japanese  American English  

10^{4} 

ten thousand  
10^{8} 

hundred million  
10^{12} 

one trillion  
10^{16} 

ten quadrillion  
10^{20} 

hundred quintilliton  
10^{24} 

one septillion  
10^{28} 

ten octillion  
10^{32} 

hundred nonillion  
10^{36} 

one undecillion  
10^{40} 

ten duodecillion  
10^{44} 

hundred tredecillion  
10^{48} 

one quindecillion  
10^{52} 

ten sexdecillion  
10^{56} 

hundred septendecillion  
10^{60} 

one novemdecillion  
10^{64} 

ten vigintillion  
10^{68} 

hundred unvigintillion 
Group  Digits and units  

0978 
 
4510 
 
2837 
 
0000    
4037 

Unit  American English  Japanese  

10^{3}  one thousand 
 
10^{6}  one million 
 
10^{9}  one billion 
 
10^{12}  one trillion 
 
10^{15}  one quadrillion 
 
10^{18}  one quintillion 
 
10^{21}  one sextillion 
 
10^{24}  one septillion 
 
10^{27}  one octillion 
 
10^{30}  one nonillion 
 
10^{33}  one decillion 
 
10^{36}  one undecillion 
 
10^{39}  one duodecillion 
 
10^{42}  one tredecillion 
 
10^{45}  one quattuordecillion 
 
10^{48}  one quindecillion 
 
10^{51}  one sexdecillion 
 
10^{54}  one septendecillion 
 
10^{57}  one octodecillion 
 
10^{60}  one novemdecillion 
 
10^{63}  one vigintillion 
 
10^{66}  one unvigintillion 
 
10^{69}  one duovigintillion 
