6431063652543 has 4 divisors (see below), whose sum is σ = 8574751536728. Its totient is φ = 4287375768360.

The previous prime is 6431063652511. The next prime is 6431063652551. The reversal of 6431063652543 is 3452563601346.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6431063652543 - 2⁵ = 6431063652511 is a prime.

It is a super-4 number, since 4×6431063652543⁴ (a number of 52 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6431063652492 and 6431063652501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431063652553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071843942088 + ... + 1071843942093.

It is an arithmetic number, because the mean of its divisors is an integer number (2143687884182).

Almost surely, 2^{6431063652543} is an apocalyptic number.

6431063652543 is a deficient number, since it is larger than the sum of its proper divisors (2143687884185).

6431063652543 is a wasteful number, since it uses less digits than its factorization.

6431063652543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143687884184.

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 6431063652543 in words is "six trillion, four hundred thirty-one billion, sixty-three million, six hundred fifty-two thousand, five hundred forty-three".