Template:o nnp
Documentation:
{{o nnp|1234567890}}
becomes luka luka
{{o nnp|1234567890|nasin=sitelen|brackets=yes}}
becomes Error: String exceeds 1,000 character limit. (1234567890 in nasin nanpa pona)
The template itself allows for numbers over 1 000 000 000 000 000 000 000 000 000 000, but this will reach the character limit and break.