/usr/bin/mips64-linux-gnuabi64-gfortran is in gfortran-mips64-linux-gnuabi64 4:7.3.0-3ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/mips64-linux-gnuabi64-gfortran-7
/usr/bin/mips64-linux-gnuabi64-gfortran-7