If you have created an MT5 account under your Deriv profile, you will be able to locate the account number at this link: https://deriv.app/mt5
As for your passwords, we strictly do not have access to all clients passwords as it is confidential to you.
But if you have forgotten your passwords, no worries we got you covered! You can check this topic on resetting it; How can I reset/change my DMT5 account password?
Haven’t created a Deriv account yet? Click here to get started right away!