2199969869 has 4 divisors (see below), whose sum is σ = 2200838880. Its totient is φ = 2199100860.

The previous prime is 2199969859. The next prime is 2199969883. The reversal of 2199969869 is 9689699912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2199969869 is a prime.

It is a super-2 number, since 2×2199969869² = 9679734849015754322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2199969799 and 2199969808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199969859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430697 + ... + 435774.

It is an arithmetic number, because the mean of its divisors is an integer number (550209720).

Almost surely, 2^2199969869 is an apocalyptic number.

It is an amenable number.

2199969869 is a deficient number, since it is larger than the sum of its proper divisors (869011).

2199969869 is an equidigital number, since it uses as much as digits as its factorization.

2199969869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869010.

The product of its digits is 34012224, while the sum is 68.

The square root of 2199969869 is about 46903.8363995953. The cubic root of 2199969869 is about 1300.5855092302.

The spelling of 2199969869 in words is "two billion, one hundred ninety-nine million, nine hundred sixty-nine thousand, eight hundred sixty-nine".