Int64 
The representation of the Int64 DataType in the address space is shown in the following table:
| Name | Attribute |
|---|---|
| NodeId | i=8 |
| NamespaceUri | http://opcfoundation.org/UA/ |
| BrowseName | Int64 |
| IsAbstract | False |
| SubtypeOf | Integer |
| Categories | Base Info Base Types |