6819723816 has 16 divisors (see below), whose sum is σ = 17049309600. Its totient is φ = 2273241264.

The previous prime is 6819723803. The next prime is 6819723863. The reversal of 6819723816 is 6183279186.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 142077556 + ... + 142077603.

It is an arithmetic number, because the mean of its divisors is an integer number (1065581850).

Almost surely, 2^6819723816 is an apocalyptic number.

It is an amenable number.

6819723816 is an abundant number, since it is smaller than the sum of its proper divisors (10229585784).

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

6819723816 is a wasteful number, since it uses less digits than its factorization.

6819723816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284155168 (or 284155164 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 6819723816 is about 82581.6191170892. The cubic root of 6819723816 is about 1896.3664458442.

The spelling of 6819723816 in words is "six billion, eight hundred nineteen million, seven hundred twenty-three thousand, eight hundred sixteen".