2099675917 has 4 divisors (see below), whose sum is σ = 2099790396. Its totient is φ = 2099561440.

The previous prime is 2099675891. The next prime is 2099675923. The reversal of 2099675917 is 7195769902.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 557857161 + 1541818756 = 23619^2 + 39266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2099675917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099675927) 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, 22834 + ... + 68707.

It is an arithmetic number, because the mean of its divisors is an integer number (524947599).

Almost surely, 2^2099675917 is an apocalyptic number.

It is an amenable number.

2099675917 is a deficient number, since it is larger than the sum of its proper divisors (114479).

2099675917 is an equidigital number, since it uses as much as digits as its factorization.

2099675917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114478.

The product of its (nonzero) digits is 2143260, while the sum is 55.

The square root of 2099675917 is about 45822.2207776969. The cubic root of 2099675917 is about 1280.5132863703.

The spelling of 2099675917 in words is "two billion, ninety-nine million, six hundred seventy-five thousand, nine hundred seventeen".