328387903939 has 2 divisors, whose sum is σ = 328387903940. Its totient is φ = 328387903938.

The previous prime is 328387903937. The next prime is 328387904063. The reversal of 328387903939 is 939309783823.

It is a weak prime.

It is an emirp because it is prime and its reverse (939309783823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328387903939 - 2¹ = 328387903937 is a prime.

Together with 328387903937, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (328387903937) 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, 164193951969 + 164193951970.

It is an arithmetic number, because the mean of its divisors is an integer number (164193951970).

Almost surely, 2^328387903939 is an apocalyptic number.

328387903939 is a deficient number, since it is larger than the sum of its proper divisors (1).

328387903939 is an equidigital number, since it uses as much as digits as its factorization.

328387903939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52907904, while the sum is 64.

The spelling of 328387903939 in words is "three hundred twenty-eight billion, three hundred eighty-seven million, nine hundred three thousand, nine hundred thirty-nine".