6543722050 has 24 divisors (see below), whose sum is σ = 12174233076. Its totient is φ = 2616863040.

The previous prime is 6543722047. The next prime is 6543722051. The reversal of 6543722050 is 502273456.

It can be written as a sum of positive squares in 6 ways, for example, as 3313959489 + 3229762561 = 57567^2 + 56831^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6543721997 and 6543722015.

It is not an unprimeable number, because it can be changed into a prime (6543722051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235492 + ... + 261808.

Almost surely, 2^6543722050 is an apocalyptic number.

6543722050 is a deficient number, since it is larger than the sum of its proper divisors (5630511026).

6543722050 is a wasteful number, since it uses less digits than its factorization.

6543722050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31302 (or 31297 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 6543722050 is about 80893.2756785136. The cubic root of 6543722050 is about 1870.4306680589.

The spelling of 6543722050 in words is "six billion, five hundred forty-three million, seven hundred twenty-two thousand, fifty".