328029289909 has 2 divisors, whose sum is σ = 328029289910. Its totient is φ = 328029289908.

The previous prime is 328029289831. The next prime is 328029289927. The reversal of 328029289909 is 909982920823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298891824100 + 29137465809 = 546710^2 + 170697^2 .

It is a cyclic number.

It is not a de Polignac number, because 328029289909 - 2¹⁹ = 328028765621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328029289999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164014644954 + 164014644955.

It is an arithmetic number, because the mean of its divisors is an integer number (164014644955).

Almost surely, 2^328029289909 is an apocalyptic number.

It is an amenable number.

328029289909 is a deficient number, since it is larger than the sum of its proper divisors (1).

328029289909 is an equidigital number, since it uses as much as digits as its factorization.

328029289909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10077696, while the sum is 61.

The spelling of 328029289909 in words is "three hundred twenty-eight billion, twenty-nine million, two hundred eighty-nine thousand, nine hundred nine".