6923805820 has 24 divisors (see below), whose sum is σ = 14878133424. Its totient is φ = 2705114496.

The previous prime is 6923805797. The next prime is 6923805821. The reversal of 6923805820 is 285083296.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6923805821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4024609 + ... + 4026328.

It is an arithmetic number, because the mean of its divisors is an integer number (619922226).

Almost surely, 2^6923805820 is an apocalyptic number.

It is an amenable number.

6923805820 is an abundant number, since it is smaller than the sum of its proper divisors (7954327604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6923805820 is a wasteful number, since it uses less digits than its factorization.

6923805820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050989 (or 8050987 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 6923805820 is about 83209.4094438844. The cubic root of 6923805820 is about 1905.9651692748.

The spelling of 6923805820 in words is "six billion, nine hundred twenty-three million, eight hundred five thousand, eight hundred twenty".