The output information of Gaussian of "polar" task is not quite readable. I suggest using Multiwfn (http://sobereva.com/multiwfn) to extract information of polar task of Gaussian, this code reorganizes these information to a very easy-to-understand form and meantime print some useful relevant quantities, as illustrated in my attached screenshot. Please check Section 4.200.7 of Multiwfn manual on how to do, it is quite easy.

Use the key Word polar=DCSHG to détermine both polarizabilty and hyperpolarizabilty extract them using multifwin

Thank you so much for helping me to sort out the polarizability

The pieces of information provided above are very useful.