The ethers.contants Object contains commonly used values.
The Address Zero, which is 20 bytes (40 nibbles) of zero.
The Hash Zero, which is 32 bytes (64 nibbles) of zero.
The Ether symbol, Ξ.
The BigNumber value representing
"1000000000000000000", which is the number of Wei per Ether.
The BigNumber value representing the maximum