How do I convert a TIMESTAMP to a BIGINT in Azure Synapse

What's the best way to convert a TIMESTAMP to a BIGINT In Azure Synapse. I tried this (which works) but seems clumsy. Is there a better, more concise and efficient way of doing the same thing? SELECT CURRENT_TIMESTAMP AS CURR_TS, CONVERT(BIGINT, CONVERT(CHAR(8), CURRENT_TIMESTAMP, 112) + REPLACE(CONVERT(CHAR(12), CURRENT_TIMESTAMP, 114), ':', '')) AS CURR_TS_NUM