Undefined Character (U+187F9)

Block:	Tangut, U+17000 - U+187FF^[1]
Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𘟹` `𘟹`
UTF-8 Encoding:	`0xF0 0x98 0x9F 0xB9`
UTF-16 Encoding:	`0xD821 0xDFF9`
UTF-32 Encoding:	`0x000187F9`

References