326442053489 has 2 divisors, whose sum is σ = 326442053490. Its totient is φ = 326442053488.

The previous prime is 326442053473. The next prime is 326442053519. The reversal of 326442053489 is 984350244623.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300641662864 + 25800390625 = 548308^2 + 160625^2 .

It is a cyclic number.

It is not a de Polignac number, because 326442053489 - 2⁴ = 326442053473 is a prime.

It is a super-2 number, since 2×326442053489² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (326442053429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163221026744 + 163221026745.

It is an arithmetic number, because the mean of its divisors is an integer number (163221026745).

Almost surely, 2^326442053489 is an apocalyptic number.

It is an amenable number.

326442053489 is a deficient number, since it is larger than the sum of its proper divisors (1).

326442053489 is an equidigital number, since it uses as much as digits as its factorization.

326442053489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 326442053489 in words is "three hundred twenty-six billion, four hundred forty-two million, fifty-three thousand, four hundred eighty-nine".