BigNumber error on small value

ethers.utils.parseEther('0.0007000000000000001') throws Error: underflow occurred (operation=“division”, fault=“underflow”, version=4.0.39) How can I fix it?

[paulrberg]

For what it’s worth, I ended up building my own solution for this problem.

It’s a tiny npm package called evm-bn, which works like this;

import { BigNumber } from "@ethersproject/bignumber";
import { toBn } from "evm-bn";

const foo: BigNumber = toBn("3.1415");
const bar: BigNumber = toBn("115792089237316195423570985008687907853269984665640564039457.584007913129639935");
const baz: BigNumber = toBn("100e6", 6);

[SCBuergel]

Since this still comes up when searching, here my solution: Do not do .mul with a number < 1, instead do .div with a number > 1