329396728705 has 16 divisors (see below), whose sum is σ = 431339338944. Its totient is φ = 239489548480.

The previous prime is 329396728699. The next prime is 329396728757. The reversal of 329396728705 is 507827693923.

It is not a de Polignac number, because 329396728705 - 2³ = 329396728697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710602 + ... + 1078771.

It is an arithmetic number, because the mean of its divisors is an integer number (26958708684).

Almost surely, 2^329396728705 is an apocalyptic number.

It is an amenable number.

329396728705 is a deficient number, since it is larger than the sum of its proper divisors (101942610239).

329396728705 is a wasteful number, since it uses less digits than its factorization.

329396728705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792736.

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 329396728705 in words is "three hundred twenty-nine billion, three hundred ninety-six million, seven hundred twenty-eight thousand, seven hundred five".