const a = 10n ** 3n;
const b = BigInt(Number.MAX_SAFE_INTEGER) + 1n;
const c = b - BigInt(Number.MAX_SAFE_INTEGER);

const results = {
  power: a,
  safe: c,
  type: typeof a,
  equal: 10n == 10,
  strict: 10n === 10,
};

console.log(
  results.power,
  results.safe,
  results.type,
  results.equal,
  results.strict
);