434239216729 has 4 divisors (see below), whose sum is σ = 459782700084. Its totient is φ = 408695733376.

The previous prime is 434239216721. The next prime is 434239216787. The reversal of 434239216729 is 927612932434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208378555225 + 225860661504 = 456485^2 + 475248^2 .

It is a cyclic number.

It is not a de Polignac number, because 434239216729 - 2³ = 434239216721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434239216721) 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 in 3 ways as a sum of consecutive naturals, for example, 12771741652 + ... + 12771741685.

It is an arithmetic number, because the mean of its divisors is an integer number (114945675021).

Almost surely, 2^434239216729 is an apocalyptic number.

It is an amenable number.

434239216729 is a deficient number, since it is larger than the sum of its proper divisors (25543483355).

434239216729 is a wasteful number, since it uses less digits than its factorization.

434239216729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25543483354.

The product of its digits is 3919104, while the sum is 52.

The spelling of 434239216729 in words is "four hundred thirty-four billion, two hundred thirty-nine million, two hundred sixteen thousand, seven hundred twenty-nine".