8191676443 has 4 divisors (see below), whose sum is σ = 8193303288. Its totient is φ = 8190049600.

The previous prime is 8191676419. The next prime is 8191676489. The reversal of 8191676443 is 3446761918.

8191676443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 8191676443 - 2⁹ = 8191675931 is a prime.

It is a super-2 number, since 2×8191676443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8191676243) 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 3 ways as a sum of consecutive naturals, for example, 805846 + ... + 815947.

It is an arithmetic number, because the mean of its divisors is an integer number (2048325822).

Almost surely, 2^8191676443 is an apocalyptic number.

8191676443 is a deficient number, since it is larger than the sum of its proper divisors (1626845).

8191676443 is a wasteful number, since it uses less digits than its factorization.

8191676443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626844.

The product of its digits is 870912, while the sum is 49.

The square root of 8191676443 is about 90507.8805574410. The cubic root of 8191676443 is about 2015.8471393603.

The spelling of 8191676443 in words is "eight billion, one hundred ninety-one million, six hundred seventy-six thousand, four hundred forty-three".