424204412173 has 2 divisors, whose sum is σ = 424204412174. Its totient is φ = 424204412172.

The previous prime is 424204412131. The next prime is 424204412243. The reversal of 424204412173 is 371214402424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352839564009 + 71364848164 = 594003^2 + 267142^2 .

It is a cyclic number.

It is not a de Polignac number, because 424204412173 - 2⁹ = 424204411661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424204412473) 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, 212102206086 + 212102206087.

It is an arithmetic number, because the mean of its divisors is an integer number (212102206087).

Almost surely, 2^424204412173 is an apocalyptic number.

It is an amenable number.

424204412173 is a deficient number, since it is larger than the sum of its proper divisors (1).

424204412173 is an equidigital number, since it uses as much as digits as its factorization.

424204412173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 34.

Adding to 424204412173 its reverse (371214402424), we get a palindrome (795418814597).

The spelling of 424204412173 in words is "four hundred twenty-four billion, two hundred four million, four hundred twelve thousand, one hundred seventy-three".