There was no Russia in 1962, there was the Soviet Union. And it's 2022, not 1962.
Paulina, dearest - Russia is legal successor. Everyone, except Ukraine recognized this. Because they want a claim on Soviet diplomatic real estate abroad (worth billions of dollars, since it is usually positioned in the poshest districts), the Diamond Fund, and the gold reserve of the Soviet Union. Ukrainians seem to believe in the fiction engineered by Stalin as a ploy for additional votes of Ukraine and Belarus as founding members of the UN alongside Russia.
Every other country emerging from the USSR recognized Russia's legal succession. This is why Russia inherited the security council veto, the nuclear arsenal, the DEBT (which we paid off, for everyone), the problems, and the responsibility.
Here's some students dissertation on this topic:
papers.ssrn.com/sol3/papers.cfm?abstract_id=3403650
and a wiki article on the legal concept:
en.m.wikipedia.org/wiki/Succession_of_states
en.m.wikipedia.org/wiki/Russia_and_the_United_Nations