As Dr. Alexandre Podtelejnikov so rightfully pointed out, you have information about the precursor protein (that is the ‘actual’ protein and its signal sequence) of 607 AA long.
According to this link (as already given):
https://www.uniprot.org/uniprot/P02769
You can scroll down to the so-called FASTA form that gives you the primary sequence.
You also find on this page the information regarding PTM/Processing, the molecule processing information about the signal peptide (AA 1-18) and the propeptide (AA 19-24) both are (normally) cleaved so ultimately you end up with a protein of 583 AA long.