You can change which user is the "Account Owner" for your account. However, this can only be done by the Account Owner.
You can do this action through Account Settings > Team Details.
To do this, click on the ellipsis for the activated user, and choose "Make Owner" from the drop-down list.
You will then be asked to confirm that you wish to change ownership of your account to the highlighted user:
Once confirmed, both the new Owner and previous Owner will receive a confirmation email that the change has taken place.
Note
Changing the ownership on the account will degrade the old Owner to the Admin role. There can only be one Account Owner role at a time.