728623326827 has 6 divisors (see below), whose sum is σ = 800883491604. Its totient is φ = 662384842460.

The previous prime is 728623326791. The next prime is 728623326889.

728623326827 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 728623326827 - 2¹⁶ = 728623261291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728623326227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3010840073 + ... + 3010840314.

It is an arithmetic number, because the mean of its divisors is an integer number (133480581934).

Almost surely, 2^728623326827 is an apocalyptic number.

728623326827 is a deficient number, since it is larger than the sum of its proper divisors (72260164777).

728623326827 is a wasteful number, since it uses less digits than its factorization.

728623326827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021680409 (or 6021680398 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 56.

The spelling of 728623326827 in words is "seven hundred twenty-eight billion, six hundred twenty-three million, three hundred twenty-six thousand, eight hundred twenty-seven".