320464800823 has 4 divisors (see below), whose sum is σ = 320512375440. Its totient is φ = 320417226208.

The previous prime is 320464800779. The next prime is 320464800839. The reversal of 320464800823 is 328008464023.

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 320464800823 - 2⁹ = 320464800311 is a prime.

It is a super-2 number, since 2×320464800823² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320464800223) 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 3 ways as a sum of consecutive naturals, for example, 23777203 + ... + 23790676.

It is an arithmetic number, because the mean of its divisors is an integer number (80128093860).

Almost surely, 2^320464800823 is an apocalyptic number.

320464800823 is a deficient number, since it is larger than the sum of its proper divisors (47574617).

320464800823 is an equidigital number, since it uses as much as digits as its factorization.

320464800823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47574616.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 320464800823 in words is "three hundred twenty billion, four hundred sixty-four million, eight hundred thousand, eight hundred twenty-three".