With Stash, inside you pagination tag pair you could do:
{paginate}
{exp:stash:set name="page_number"}
Page {current_page}
{/exp:stash:set}
{!-- any other pagination stuff here --}
{/paginate}
Which would give you "Page X" accessible as {exp:stash:get name="page_number"}
.
Another potential is to use Mo' Variables, which provides a Pagination Detect Conditional and Page Offset as {if paginated}
and {page_offset}
, respectively.
So for example
{if paginated}This is a paginated view{/if}
But I just realized {page_offset}
isn't going to be quite what you wanted. It will give you some multiple of whatever you have in your limit
parameter so will not directly give you "Page 1" "Page 2" etc.