329387640047 has 4 divisors (see below), whose sum is σ = 329436670080. Its totient is φ = 329338610016.

The previous prime is 329387640041. The next prime is 329387640073. The reversal of 329387640047 is 740046783923.

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 329387640047 - 2¹⁰ = 329387639023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329387640041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24504938 + ... + 24518375.

It is an arithmetic number, because the mean of its divisors is an integer number (82359167520).

Almost surely, 2^329387640047 is an apocalyptic number.

329387640047 is a deficient number, since it is larger than the sum of its proper divisors (49030033).

329387640047 is an equidigital number, since it uses as much as digits as its factorization.

329387640047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49030032.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 329387640047 in words is "three hundred twenty-nine billion, three hundred eighty-seven million, six hundred forty thousand, forty-seven".