The answer is 2,737,459.
I'm sure some people could calculate that in their heads without being part uryuom, but I doubt it'd be quick.
I mean, maybe someone could? I dunno. People can pull off some weird things.
Anyway, Nanase's probably right, but that raises another question: What if she DID have access to some of that uryuom-specific power while transformed this way?
Also, I look forward to answering "why chopsticks".