How powerful would BRICS be if it were one country?

If the 11 BRICS members were one country, they would have around 4 billion people, over 49% of the world's population, and a combined GDP of $35.18 trillion, accounting for about 40% of the global economy. They would also have 17,654 military aircraft and over 70.61 lakh soldiers. Their 6,230 nuclear weapons would outnumber the G7 nations' 5,637 nuclear weapons.