517744340517 has 16 divisors (see below), whose sum is σ = 698190963200. Its totient is φ = 341251974000.

The previous prime is 517744340513. The next prime is 517744340563. The reversal of 517744340517 is 715043447715.

It is not a de Polignac number, because 517744340517 - 2² = 517744340513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517744340513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2612767 + ... + 2803932.

It is an arithmetic number, because the mean of its divisors is an integer number (43636935200).

Almost surely, 2^517744340517 is an apocalyptic number.

It is an amenable number.

517744340517 is a deficient number, since it is larger than the sum of its proper divisors (180446622683).

517744340517 is a wasteful number, since it uses less digits than its factorization.

517744340517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417064.

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 517744340517 in words is "five hundred seventeen billion, seven hundred forty-four million, three hundred forty thousand, five hundred seventeen".