No, there is no such number.
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The five axioms, or postulates proposed by Peano are for the set of natural numbers: not real numbers. They are:Zero is a natural number.Every natural number has a successor in the natural numbers.Zero is not the successor of any natural number.If the successor of two natural numbers is the same, then the two original numbers are the same.If a set contains zero and the successor of every number is in the set, then the set contains the natural numbers.
One is added.
There is no LAST natural number. According to Peano's axioms for numbers, every natural number has a successor.
Not everyone is agreed on this but Peano's axioms, which are the basis for the axiomatic structure of numbers defines 0 as a natural number and then all other natural numbers in terms of successors.0 is not a successor of any natural number.1 is the successor of 0 is 1 = S(0)2 = S(S(0))3 = S(S(S(0))) and so on.Accordingly, the first natural number is 0.
In Peano's axioms, the successor to any integer n is n+1.