2162843689 has 4 divisors (see below), whose sum is σ = 2167770880. Its totient is φ = 2157916500.

The previous prime is 2162843687. The next prime is 2162843723. The reversal of 2162843689 is 9863482612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2162843689 - 2¹ = 2162843687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2162843687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2462937 + ... + 2463814.

It is an arithmetic number, because the mean of its divisors is an integer number (541942720).

Almost surely, 2^2162843689 is an apocalyptic number.

It is an amenable number.

2162843689 is a deficient number, since it is larger than the sum of its proper divisors (4927191).

2162843689 is an equidigital number, since it uses as much as digits as its factorization.

2162843689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927190.

The product of its digits is 995328, while the sum is 49.

The square root of 2162843689 is about 46506.3833145516. The cubic root of 2162843689 is about 1293.2278376873.

The spelling of 2162843689 in words is "two billion, one hundred sixty-two million, eight hundred forty-three thousand, six hundred eighty-nine".