720717923233 has 16 divisors (see below), whose sum is σ = 905983516800. Its totient is φ = 561598374480.

The previous prime is 720717923203. The next prime is 720717923333. The reversal of 720717923233 is 332329717027.

It is a de Polignac number, because none of the positive numbers 2^k-720717923233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720717923203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38668258 + ... + 38686891.

It is an arithmetic number, because the mean of its divisors is an integer number (56623969800).

Almost surely, 2^720717923233 is an apocalyptic number.

It is an amenable number.

720717923233 is a deficient number, since it is larger than the sum of its proper divisors (185265593567).

720717923233 is an equidigital number, since it uses as much as digits as its factorization.

720717923233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77355189 (or 77355167 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 46.

The spelling of 720717923233 in words is "seven hundred twenty billion, seven hundred seventeen million, nine hundred twenty-three thousand, two hundred thirty-three".