2109567822 has 16 divisors (see below), whose sum is σ = 4364623440. Its totient is φ = 678941312.

The previous prime is 2109567799. The next prime is 2109567827. The reversal of 2109567822 is 2287659012.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109567827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6061803 + ... + 6062150.

It is an arithmetic number, because the mean of its divisors is an integer number (272788965).

Almost surely, 2^2109567822 is an apocalyptic number.

2109567822 is an abundant number, since it is smaller than the sum of its proper divisors (2255055618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2109567822 is a wasteful number, since it uses less digits than its factorization.

2109567822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123987.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 2109567822 is about 45930.0318092640. The cubic root of 2109567822 is about 1282.5210368592.

The spelling of 2109567822 in words is "two billion, one hundred nine million, five hundred sixty-seven thousand, eight hundred twenty-two".