Cow

According to Golok Khand,

1. one was designated Upnand who owned 500,000 cows, 
2. Nand was one who maintained 900,000 cows, 
3. Vrishbhanu was one who maintained 1,000,000 cows, 
4. Vrishbhanuvar was one who maintained 5,000,000 cows, 
5. Nandraja was one who maintained 1 crore (10 million) cows. 

http://vyasvyas.blogspot.com/search/label/Jaimini