6543563143 has 12 divisors (see below), whose sum is σ = 7485826600. Its totient is φ = 5684902272.

The previous prime is 6543563099. The next prime is 6543563153. The reversal of 6543563143 is 3413653456.

It is not a de Polignac number, because 6543563143 - 2⁹ = 6543562631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6543563096 and 6543563105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543563153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 867093 + ... + 874606.

Almost surely, 2^6543563143 is an apocalyptic number.

6543563143 is a deficient number, since it is larger than the sum of its proper divisors (942263457).

6543563143 is a wasteful number, since it uses less digits than its factorization.

6543563143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741746 (or 1741729 counting only the distinct ones).

The product of its digits is 388800, while the sum is 40.

The square root of 6543563143 is about 80892.2934710100. The cubic root of 6543563143 is about 1870.4155274947.

The spelling of 6543563143 in words is "six billion, five hundred forty-three million, five hundred sixty-three thousand, one hundred forty-three".