429945594217 has 2 divisors, whose sum is σ = 429945594218. Its totient is φ = 429945594216.

The previous prime is 429945594209. The next prime is 429945594223. The reversal of 429945594217 is 712495549924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362561741161 + 67383853056 = 602131^2 + 259584^2 .

It is a cyclic number.

It is not a de Polignac number, because 429945594217 - 2³ = 429945594209 is a prime.

It is not a weakly prime, because it can be changed into another prime (429945594257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214972797108 + 214972797109.

It is an arithmetic number, because the mean of its divisors is an integer number (214972797109).

Almost surely, 2^429945594217 is an apocalyptic number.

It is an amenable number.

429945594217 is a deficient number, since it is larger than the sum of its proper divisors (1).

429945594217 is an equidigital number, since it uses as much as digits as its factorization.

429945594217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 61.

The spelling of 429945594217 in words is "four hundred twenty-nine billion, nine hundred forty-five million, five hundred ninety-four thousand, two hundred seventeen".