וְהַ֨בָּקָ֔ר שִׁשָּׁ֥ה וּשְׁלֹשִׁ֖ים אָ֑לֶף וּמִכְסָ֥ם לַיהוָ֖ה שְׁנַ֥יִם וְשִׁבְעִֽים׃
And the beeves were thirty and six thousand, of which the LORD’S tribute was threescore and twelve.
Read kabbalistic (mystical) interpretation of Numbers 31:38: and classical mystical sources.