517852705351 has 4 divisors (see below), whose sum is σ = 517987111672. Its totient is φ = 517718299032.

The previous prime is 517852705303. The next prime is 517852705369. The reversal of 517852705351 is 153507258715.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153507258715 = 5 ⋅30701451743.

It is a cyclic number.

It is not a de Polignac number, because 517852705351 - 2²⁷ = 517718487623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 517852705295 and 517852705304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517852795351) 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, 67197381 + ... + 67205086.

It is an arithmetic number, because the mean of its divisors is an integer number (129496777918).

Almost surely, 2^517852705351 is an apocalyptic number.

517852705351 is a deficient number, since it is larger than the sum of its proper divisors (134406321).

517852705351 is a wasteful number, since it uses less digits than its factorization.

517852705351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134406320.

The product of its (nonzero) digits is 1470000, while the sum is 49.

The spelling of 517852705351 in words is "five hundred seventeen billion, eight hundred fifty-two million, seven hundred five thousand, three hundred fifty-one".