The only property available I know of that is available.
Summary | Guest Operating System | Guest OS IP Address
The Guest Hostname is available from the tools but it is not listed as a property in vRealize. You could write a script to pull this and add as a Tag or Annotation, which both are available as properties of a VM.
Cheers,
In case you're using vROPs 6.1 you can find out this data under Analysis > Anomalies of OS resource
how to write script and add it on vrops