329009816893 has 4 divisors (see below), whose sum is σ = 333643758048. Its totient is φ = 324375875740.

The previous prime is 329009816887. The next prime is 329009816939. The reversal of 329009816893 is 398618900923.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 329009816893 - 2¹⁷ = 329009685821 is a prime.

It is a super-2 number, since 2×329009816893² (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 (329009816873) 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, 2316970471 + ... + 2316970612.

It is an arithmetic number, because the mean of its divisors is an integer number (83410939512).

Almost surely, 2^329009816893 is an apocalyptic number.

It is an amenable number.

329009816893 is a deficient number, since it is larger than the sum of its proper divisors (4633941155).

329009816893 is an equidigital number, since it uses as much as digits as its factorization.

329009816893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633941154.

The product of its (nonzero) digits is 5038848, while the sum is 58.

The spelling of 329009816893 in words is "three hundred twenty-nine billion, nine million, eight hundred sixteen thousand, eight hundred ninety-three".