6543934403 has 8 divisors (see below), whose sum is σ = 6709560000. Its totient is φ = 6378919848.

The previous prime is 6543934391. The next prime is 6543934451. The reversal of 6543934403 is 3044393456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6543934403 - 2³⁰ = 5470192579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6543930403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131033 + ... + 173946.

It is an arithmetic number, because the mean of its divisors is an integer number (838695000).

Almost surely, 2^6543934403 is an apocalyptic number.

6543934403 is a deficient number, since it is larger than the sum of its proper divisors (165625597).

6543934403 is a wasteful number, since it uses less digits than its factorization.

6543934403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305521.

The product of its (nonzero) digits is 466560, while the sum is 41.

The square root of 6543934403 is about 80894.5882182486. The cubic root of 6543934403 is about 1870.4509005435.

The spelling of 6543934403 in words is "six billion, five hundred forty-three million, nine hundred thirty-four thousand, four hundred three".