517113774372145 has 8 divisors (see below), whose sum is σ = 629037029647656. Its totient is φ = 408024019230336.

The previous prime is 517113774372121. The next prime is 517113774372163. The reversal of 517113774372145 is 541273477311715.

It can be written as a sum of positive squares in 4 ways, for example, as 232267109857344 + 284846664514801 = 15240312^2 + 16877401^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 517113774372145 - 2¹⁹ = 517113773847857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 517113774372145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708375033022 + ... + 708375033751.

It is an arithmetic number, because the mean of its divisors is an integer number (78629628705957).

Almost surely, 2^{517113774372145} is an apocalyptic number.

It is an amenable number.

517113774372145 is a deficient number, since it is larger than the sum of its proper divisors (111923255275511).

517113774372145 is a wasteful number, since it uses less digits than its factorization.

517113774372145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416750066851.

The product of its digits is 17287200, while the sum is 58.

The spelling of 517113774372145 in words is "five hundred seventeen trillion, one hundred thirteen billion, seven hundred seventy-four million, three hundred seventy-two thousand, one hundred forty-five".