328003643298218 has 16 divisors (see below), whose sum is σ = 497535565431240. Its totient is φ = 162158469259776.

The previous prime is 328003643298217. The next prime is 328003643298241. The reversal of 328003643298218 is 812892346300823.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 265969227124969 + 62034416173249 = 16308563^2 + 7876193^2 .

It is not an unprimeable number, because it can be changed into a prime (328003643298217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43688780 + ... + 50643032.

Almost surely, 2^{328003643298218} is an apocalyptic number.

328003643298218 is a deficient number, since it is larger than the sum of its proper divisors (169531922133022).

328003643298218 is a wasteful number, since it uses less digits than its factorization.

328003643298218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219321.

The product of its (nonzero) digits is 23887872, while the sum is 59.

The spelling of 328003643298218 in words is "three hundred twenty-eight trillion, three billion, six hundred forty-three million, two hundred ninety-eight thousand, two hundred eighteen".