2199800879 has 4 divisors (see below), whose sum is σ = 2199900360. Its totient is φ = 2199701400.

The previous prime is 2199800857. The next prime is 2199800957. The reversal of 2199800879 is 9780089912.

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 is a cyclic number.

It is not a de Polignac number, because 2199800879 - 2⁸ = 2199800623 is a prime.

It is a super-3 number, since 3×2199800879³ (a number of 29 digits) contains 333 as substring.

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 2199800879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199800809) 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, 29 + ... + 66329.

It is an arithmetic number, because the mean of its divisors is an integer number (549975090).

Almost surely, 2^2199800879 is an apocalyptic number.

2199800879 is a deficient number, since it is larger than the sum of its proper divisors (99481).

2199800879 is an equidigital number, since it uses as much as digits as its factorization.

2199800879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99480.

The product of its (nonzero) digits is 653184, while the sum is 53.

The square root of 2199800879 is about 46902.0349132103. The cubic root of 2199800879 is about 1300.5522070206.

The spelling of 2199800879 in words is "two billion, one hundred ninety-nine million, eight hundred thousand, eight hundred seventy-nine".