423558168073 has 2 divisors, whose sum is σ = 423558168074. Its totient is φ = 423558168072.

The previous prime is 423558168043. The next prime is 423558168119. The reversal of 423558168073 is 370861855324.

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., 420937547209 + 2620620864 = 648797^2 + 51192^2 .

It is a cyclic number.

It is not a de Polignac number, because 423558168073 - 2⁹ = 423558167561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423558168073.

It is not a weakly prime, because it can be changed into another prime (423558168013) 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, 211779084036 + 211779084037.

It is an arithmetic number, because the mean of its divisors is an integer number (211779084037).

Almost surely, 2^423558168073 is an apocalyptic number.

It is an amenable number.

423558168073 is a deficient number, since it is larger than the sum of its proper divisors (1).

423558168073 is an equidigital number, since it uses as much as digits as its factorization.

423558168073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 423558168073 in words is "four hundred twenty-three billion, five hundred fifty-eight million, one hundred sixty-eight thousand, seventy-three".