8191796203 has 4 divisors (see below), whose sum is σ = 8209566288. Its totient is φ = 8174026120.

The previous prime is 8191796191. The next prime is 8191796213. The reversal of 8191796203 is 3026971918.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8191796203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8191796213) 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, 8884351 + ... + 8885272.

It is an arithmetic number, because the mean of its divisors is an integer number (2052391572).

Almost surely, 2^8191796203 is an apocalyptic number.

8191796203 is a deficient number, since it is larger than the sum of its proper divisors (17770085).

8191796203 is a wasteful number, since it uses less digits than its factorization.

8191796203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17770084.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 8191796203 is about 90508.5421548707. The cubic root of 8191796203 is about 2015.8569630180.

The spelling of 8191796203 in words is "eight billion, one hundred ninety-one million, seven hundred ninety-six thousand, two hundred three".