328444439447 has 2 divisors, whose sum is σ = 328444439448. Its totient is φ = 328444439446.

The previous prime is 328444439399. The next prime is 328444439459. The reversal of 328444439447 is 744934444823.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 328444439447 - 2³⁴ = 311264570263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328444439392 and 328444439401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328444439747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164222219723 + 164222219724.

It is an arithmetic number, because the mean of its divisors is an integer number (164222219724).

Almost surely, 2^328444439447 is an apocalyptic number.

328444439447 is a deficient number, since it is larger than the sum of its proper divisors (1).

328444439447 is an equidigital number, since it uses as much as digits as its factorization.

328444439447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37158912, while the sum is 56.

The spelling of 328444439447 in words is "three hundred twenty-eight billion, four hundred forty-four million, four hundred thirty-nine thousand, four hundred forty-seven".