6923668819 has 4 divisors (see below), whose sum is σ = 6958814544. Its totient is φ = 6888523096.

The previous prime is 6923668789. The next prime is 6923668859. The reversal of 6923668819 is 9188663296.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6923668819 - 2⁷ = 6923668691 is a prime.

It is a super-2 number, since 2×6923668819² = 95874379830385709522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6923668859) 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 in 3 ways as a sum of consecutive naturals, for example, 17572567 + ... + 17572960.

It is an arithmetic number, because the mean of its divisors is an integer number (1739703636).

Almost surely, 2^6923668819 is an apocalyptic number.

6923668819 is a deficient number, since it is larger than the sum of its proper divisors (35145725).

6923668819 is a wasteful number, since it uses less digits than its factorization.

6923668819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35145724.

The product of its digits is 6718464, while the sum is 58.

The square root of 6923668819 is about 83208.5862095974. The cubic root of 6923668819 is about 1905.9525981127.

The spelling of 6923668819 in words is "six billion, nine hundred twenty-three million, six hundred sixty-eight thousand, eight hundred nineteen".