320454411889 has 2 divisors, whose sum is σ = 320454411890. Its totient is φ = 320454411888.

The previous prime is 320454411853. The next prime is 320454411967. The reversal of 320454411889 is 988114454023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186458148864 + 133996263025 = 431808^2 + 366055^2 .

It is a cyclic number.

It is not a de Polignac number, because 320454411889 - 2⁹ = 320454411377 is a prime.

It is not a weakly prime, because it can be changed into another prime (320454411829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160227205944 + 160227205945.

It is an arithmetic number, because the mean of its divisors is an integer number (160227205945).

Almost surely, 2^320454411889 is an apocalyptic number.

It is an amenable number.

320454411889 is a deficient number, since it is larger than the sum of its proper divisors (1).

320454411889 is an equidigital number, since it uses as much as digits as its factorization.

320454411889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 320454411889 in words is "three hundred twenty billion, four hundred fifty-four million, four hundred eleven thousand, eight hundred eighty-nine".