2129668199 has 8 divisors (see below), whose sum is σ = 2156915712. Its totient is φ = 2102458680.

The previous prime is 2129668193. The next prime is 2129668223. The reversal of 2129668199 is 9918669212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2129668199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2129668199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129668193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113372 + ... + 130814.

It is an arithmetic number, because the mean of its divisors is an integer number (269614464).

Almost surely, 2^2129668199 is an apocalyptic number.

2129668199 is a deficient number, since it is larger than the sum of its proper divisors (27247513).

2129668199 is a wasteful number, since it uses less digits than its factorization.

2129668199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18997.

The product of its digits is 839808, while the sum is 53.

The square root of 2129668199 is about 46148.3282362428. The cubic root of 2129668199 is about 1286.5815384884.

The spelling of 2129668199 in words is "two billion, one hundred twenty-nine million, six hundred sixty-eight thousand, one hundred ninety-nine".