323643320643 has 8 divisors (see below), whose sum is σ = 431659841728. Its totient is φ = 215694506664.

The previous prime is 323643320551. The next prime is 323643320669. The reversal of 323643320643 is 346023346323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 323643320643 - 2²⁸ = 323374885187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323643320683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16915621 + ... + 16934742.

It is an arithmetic number, because the mean of its divisors is an integer number (53957480216).

Almost surely, 2^323643320643 is an apocalyptic number.

323643320643 is a deficient number, since it is larger than the sum of its proper divisors (108016521085).

323643320643 is a wasteful number, since it uses less digits than its factorization.

323643320643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33853553.

The product of its (nonzero) digits is 559872, while the sum is 39.

Adding to 323643320643 its reverse (346023346323), we get a palindrome (669666666966).

The spelling of 323643320643 in words is "three hundred twenty-three billion, six hundred forty-three million, three hundred twenty thousand, six hundred forty-three".