6816320735 has 16 divisors (see below), whose sum is σ = 9351386112. Its totient is φ = 4672404000.

The previous prime is 6816320729. The next prime is 6816320767. The reversal of 6816320735 is 5370236186.

It is not a de Polignac number, because 6816320735 - 2¹⁴ = 6816304351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6816320692 and 6816320701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71210 + ... + 136760.

It is an arithmetic number, because the mean of its divisors is an integer number (584461632).

Almost surely, 2^6816320735 is an apocalyptic number.

6816320735 is a deficient number, since it is larger than the sum of its proper divisors (2535065377).

6816320735 is a wasteful number, since it uses less digits than its factorization.

6816320735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68534.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 6816320735 is about 82561.0121970413. The cubic root of 6816320735 is about 1896.0509608121.

The spelling of 6816320735 in words is "six billion, eight hundred sixteen million, three hundred twenty thousand, seven hundred thirty-five".