Update: Actually PyCharm works on my Nvidia Jetson Nano arm64. I did
apt-get install openjdk-8-jdk
then downloaded the Linux version of PyCharm community from their website, extracted the files and
cd pycharm-community-2019.1.1/bin
./pycharm.sh
This started the installation process and it worked well.
Give it a try. I love PyCharm.