2099791068 has 12 divisors (see below), whose sum is σ = 4899512520. Its totient is φ = 699930352.

The previous prime is 2099791019. The next prime is 2099791069. The reversal of 2099791068 is 8601979902.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2099791068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099791069) 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, 87491283 + ... + 87491306.

It is an arithmetic number, because the mean of its divisors is an integer number (408292710).

Almost surely, 2^2099791068 is an apocalyptic number.

It is an amenable number.

2099791068 is an abundant number, since it is smaller than the sum of its proper divisors (2799721452).

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

2099791068 is a wasteful number, since it uses less digits than its factorization.

2099791068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174982596 (or 174982594 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 2099791068 is about 45823.4772578424. The cubic root of 2099791068 is about 1280.5366946955.

The spelling of 2099791068 in words is "two billion, ninety-nine million, seven hundred ninety-one thousand, sixty-eight".