728806065211 has 4 divisors (see below), whose sum is σ = 832921217392. Its totient is φ = 624690913032.

The previous prime is 728806065209. The next prime is 728806065277. The reversal of 728806065211 is 112560608827.

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 728806065211 - 2¹ = 728806065209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728806065011) 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 3 ways as a sum of consecutive naturals, for example, 52057576080 + ... + 52057576093.

It is an arithmetic number, because the mean of its divisors is an integer number (208230304348).

Almost surely, 2^728806065211 is an apocalyptic number.

728806065211 is a deficient number, since it is larger than the sum of its proper divisors (104115152181).

728806065211 is a wasteful number, since it uses less digits than its factorization.

728806065211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104115152180.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 728806065211 in words is "seven hundred twenty-eight billion, eight hundred six million, sixty-five thousand, two hundred eleven".