6823723919 has 2 divisors, whose sum is σ = 6823723920. Its totient is φ = 6823723918.

The previous prime is 6823723831. The next prime is 6823723961. The reversal of 6823723919 is 9193273286.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6823723919 is a prime.

It is a super-2 number, since 2×6823723919² = 93126416245465437122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6823723969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3411861959 + 3411861960.

It is an arithmetic number, because the mean of its divisors is an integer number (3411861960).

Almost surely, 2^6823723919 is an apocalyptic number.

6823723919 is a deficient number, since it is larger than the sum of its proper divisors (1).

6823723919 is an equidigital number, since it uses as much as digits as its factorization.

6823723919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 6823723919 is about 82605.8346547022. The cubic root of 6823723919 is about 1896.7371440658.

The spelling of 6823723919 in words is "six billion, eight hundred twenty-three million, seven hundred twenty-three thousand, nine hundred nineteen".