6816329396 has 6 divisors (see below), whose sum is σ = 11928576450. Its totient is φ = 3408164696.

The previous prime is 6816329323. The next prime is 6816329407. The reversal of 6816329396 is 6939236186.

It can be written as a sum of positive squares in only one way, i.e., 6426266896 + 390062500 = 80164^2 + 19750^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 852041171 + ... + 852041178.

It is an arithmetic number, because the mean of its divisors is an integer number (1988096075).

Almost surely, 2^6816329396 is an apocalyptic number.

It is an amenable number.

6816329396 is a deficient number, since it is larger than the sum of its proper divisors (5112247054).

6816329396 is a wasteful number, since it uses less digits than its factorization.

6816329396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704082353 (or 1704082351 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 53.

The square root of 6816329396 is about 82561.0646491432. The cubic root of 6816329396 is about 1896.0517638695.

The spelling of 6816329396 in words is "six billion, eight hundred sixteen million, three hundred twenty-nine thousand, three hundred ninety-six".