6543488687 has 2 divisors, whose sum is σ = 6543488688. Its totient is φ = 6543488686.

The previous prime is 6543488681. The next prime is 6543488701. The reversal of 6543488687 is 7868843456.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6543488687 - 2⁴ = 6543488671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6543488681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271744343 + 3271744344.

It is an arithmetic number, because the mean of its divisors is an integer number (3271744344).

Almost surely, 2^6543488687 is an apocalyptic number.

6543488687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6543488687 is an equidigital number, since it uses as much as digits as its factorization.

6543488687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30965760, while the sum is 59.

The square root of 6543488687 is about 80891.8332528074. The cubic root of 6543488687 is about 1870.4084332870.

The spelling of 6543488687 in words is "six billion, five hundred forty-three million, four hundred eighty-eight thousand, six hundred eighty-seven".