328733672329 has 2 divisors, whose sum is σ = 328733672330. Its totient is φ = 328733672328.

The previous prime is 328733672321. The next prime is 328733672353. The reversal of 328733672329 is 923276337823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237142702729 + 91590969600 = 486973^2 + 302640^2 .

It is a cyclic number.

It is not a de Polignac number, because 328733672329 - 2³ = 328733672321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328733672329.

It is not a weakly prime, because it can be changed into another prime (328733672321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164366836164 + 164366836165.

It is an arithmetic number, because the mean of its divisors is an integer number (164366836165).

Almost surely, 2^328733672329 is an apocalyptic number.

It is an amenable number.

328733672329 is a deficient number, since it is larger than the sum of its proper divisors (1).

328733672329 is an equidigital number, since it uses as much as digits as its factorization.

328733672329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 55.

The spelling of 328733672329 in words is "three hundred twenty-eight billion, seven hundred thirty-three million, six hundred seventy-two thousand, three hundred twenty-nine".