It seems, that there is no blueprint function exposed, but you can take a look here: FDefaultValueHelper::ParseInt64 | Unreal Engine Documentation and simply write a wrapper function which exposes that to blueprints.
It seems, that there is no blueprint function exposed, but you can take a look here: FDefaultValueHelper::ParseInt64 | Unreal Engine Documentation and simply write a wrapper function which exposes that to blueprints.