434542509917 has 2 divisors, whose sum is σ = 434542509918. Its totient is φ = 434542509916.

The previous prime is 434542509913. The next prime is 434542509967. The reversal of 434542509917 is 719905245434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331667720836 + 102874789081 = 575906^2 + 320741^2 .

It is a cyclic number.

It is not a de Polignac number, because 434542509917 - 2² = 434542509913 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434542509913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217271254958 + 217271254959.

It is an arithmetic number, because the mean of its divisors is an integer number (217271254959).

Almost surely, 2^434542509917 is an apocalyptic number.

It is an amenable number.

434542509917 is a deficient number, since it is larger than the sum of its proper divisors (1).

434542509917 is an equidigital number, since it uses as much as digits as its factorization.

434542509917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 434542509917 in words is "four hundred thirty-four billion, five hundred forty-two million, five hundred nine thousand, nine hundred seventeen".