Get Hour And minute, Second From Second in Sql Server

DECLARE @Second1 BIGINT=5401
SET @Second1=ABS(@Second1)
DECLARE @ETIME AS VARCHAR(20)
SELECT @ETIME = RIGHT(CAST(@Second1 / 3600 AS VARCHAR(10)),7) + '.' +
RIGHT('0' + CAST((@Second1 / 60) % 60 AS VARCHAR(10)),2) + ':' + RIGHT('0' + CAST(@Second1 % 60 AS VARCHAR(2)),2)
SELECT @ETIME