6199223909 has 2 divisors, whose sum is σ = 6199223910. Its totient is φ = 6199223908.

The previous prime is 6199223897. The next prime is 6199223911. The reversal of 6199223909 is 9093229916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6106641025 + 92582884 = 78145^2 + 9622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6199223909 is a prime.

Together with 6199223911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6199223959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3099611954 + 3099611955.

It is an arithmetic number, because the mean of its divisors is an integer number (3099611955).

Almost surely, 2^6199223909 is an apocalyptic number.

It is an amenable number.

6199223909 is a deficient number, since it is larger than the sum of its proper divisors (1).

6199223909 is an equidigital number, since it uses as much as digits as its factorization.

6199223909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 6199223909 is about 78735.1504031078. The cubic root of 6199223909 is about 1837.0138936198.

The spelling of 6199223909 in words is "six billion, one hundred ninety-nine million, two hundred twenty-three thousand, nine hundred nine".