424021704217 has 2 divisors, whose sum is σ = 424021704218. Its totient is φ = 424021704216.

The previous prime is 424021704199. The next prime is 424021704229. The reversal of 424021704217 is 712407120424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267893197056 + 156128507161 = 517584^2 + 395131^2 .

It is a cyclic number.

It is not a de Polignac number, because 424021704217 - 2¹⁹ = 424021179929 is a prime.

It is not a weakly prime, because it can be changed into another prime (424021774217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212010852108 + 212010852109.

It is an arithmetic number, because the mean of its divisors is an integer number (212010852109).

Almost surely, 2^424021704217 is an apocalyptic number.

It is an amenable number.

424021704217 is a deficient number, since it is larger than the sum of its proper divisors (1).

424021704217 is an equidigital number, since it uses as much as digits as its factorization.

424021704217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 34.

The spelling of 424021704217 in words is "four hundred twenty-four billion, twenty-one million, seven hundred four thousand, two hundred seventeen".