6641968593 has 8 divisors (see below), whose sum is σ = 9537185728. Its totient is φ = 4087365264.

The previous prime is 6641968573. The next prime is 6641968609. The reversal of 6641968593 is 3958691466.

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

It is not a de Polignac number, because 6641968593 - 2⁸ = 6641968337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6641968573) 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 in 7 ways as a sum of consecutive naturals, for example, 85153405 + ... + 85153482.

It is an arithmetic number, because the mean of its divisors is an integer number (1192148216).

Almost surely, 2^6641968593 is an apocalyptic number.

It is an amenable number.

6641968593 is a deficient number, since it is larger than the sum of its proper divisors (2895217135).

6641968593 is a wasteful number, since it uses less digits than its factorization.

6641968593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170306903.

The product of its digits is 8398080, while the sum is 57.

The square root of 6641968593 is about 81498.2735584012. The cubic root of 6641968593 is about 1879.7450039881.

The spelling of 6641968593 in words is "six billion, six hundred forty-one million, nine hundred sixty-eight thousand, five hundred ninety-three".