329938396427 has 2 divisors, whose sum is σ = 329938396428. Its totient is φ = 329938396426.

The previous prime is 329938396391. The next prime is 329938396471. The reversal of 329938396427 is 724693839923.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 329938396427 - 2⁸ = 329938396171 is a prime.

It is not a weakly prime, because it can be changed into another prime (329938096427) 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 as a sum of consecutive naturals, namely, 164969198213 + 164969198214.

It is an arithmetic number, because the mean of its divisors is an integer number (164969198214).

Almost surely, 2^329938396427 is an apocalyptic number.

329938396427 is a deficient number, since it is larger than the sum of its proper divisors (1).

329938396427 is an equidigital number, since it uses as much as digits as its factorization.

329938396427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105815808, while the sum is 65.

The spelling of 329938396427 in words is "three hundred twenty-nine billion, nine hundred thirty-eight million, three hundred ninety-six thousand, four hundred twenty-seven".