The number 5443097674393848001 lacks a timestamp pattern common in "Snowflake IDs" (which usually encode the date). This suggests it is:
The "2_" prefix may denote a specific server cluster or data center (e.g., DC2). 2_5443097674393848001
The suffix 5443097674393848001 is a 19-digit integer, which fits within the range of a 64-bit signed integer (BigInt). 2_5443097674393848001