GORNO-ALTAYSK, August 4. Visitors from 64 countries are already allowed to enter Russia using electronic visas, Russian Prime Minister Mikhail Mishustin said. "Today, tourists from 64 states can enter our country with an electronic visa, which is significantly easier to obtain. The permitted period of stay in Russia has almost doubled from 16 to 30 [days]," he said at a meeting on tourism development.