517613340541345 has 4 divisors (see below), whose sum is σ = 621136008649620. Its totient is φ = 414090672433072.

The previous prime is 517613340541337. The next prime is 517613340541447. The reversal of 517613340541345 is 543145043316715.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 359067367559329 + 158545972982016 = 18949073^2 + 12591504^2 .

It is a cyclic number.

It is not a de Polignac number, because 517613340541345 - 2³ = 517613340541337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 517613340541292 and 517613340541301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51761334054130 + ... + 51761334054139.

It is an arithmetic number, because the mean of its divisors is an integer number (155284002162405).

Almost surely, 2^{517613340541345} is an apocalyptic number.

It is an amenable number.

517613340541345 is a deficient number, since it is larger than the sum of its proper divisors (103522668108275).

517613340541345 is a wasteful number, since it uses less digits than its factorization.

517613340541345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103522668108274.

The product of its (nonzero) digits is 9072000, while the sum is 52.

The spelling of 517613340541345 in words is "five hundred seventeen trillion, six hundred thirteen billion, three hundred forty million, five hundred forty-one thousand, three hundred forty-five".