509112667417 has 8 divisors (see below), whose sum is σ = 518706558216. Its totient is φ = 499589580672.

The previous prime is 509112667391. The next prime is 509112667421. The reversal of 509112667417 is 714766211905.

It can be written as a sum of positive squares in 4 ways, for example, as 398500550361 + 110612117056 = 631269^2 + 332584^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-509112667417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509112617417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17686498 + ... + 17715259.

It is an arithmetic number, because the mean of its divisors is an integer number (64838319777).

Almost surely, 2^509112667417 is an apocalyptic number.

It is an amenable number.

509112667417 is a deficient number, since it is larger than the sum of its proper divisors (9593890799).

509112667417 is a wasteful number, since it uses less digits than its factorization.

509112667417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35402027.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 509112667417 in words is "five hundred nine billion, one hundred twelve million, six hundred sixty-seven thousand, four hundred seventeen".