517036796497 has 4 divisors (see below), whose sum is σ = 556808857780. Its totient is φ = 477264735216.

The previous prime is 517036796489. The next prime is 517036796513. The reversal of 517036796497 is 794697630715.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794697630715 = 5 ⋅158939526143.

It can be written as a sum of positive squares in 2 ways, for example, as 65411131536 + 451625664961 = 255756^2 + 672031^2 .

It is a cyclic number.

It is not a de Polignac number, because 517036796497 - 2³ = 517036796489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (517036796467) 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, 19886030622 + ... + 19886030647.

It is an arithmetic number, because the mean of its divisors is an integer number (139202214445).

Almost surely, 2^517036796497 is an apocalyptic number.

It is an amenable number.

517036796497 is a deficient number, since it is larger than the sum of its proper divisors (39772061283).

517036796497 is a wasteful number, since it uses less digits than its factorization.

517036796497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39772061282.

The product of its (nonzero) digits is 60011280, while the sum is 64.

The spelling of 517036796497 in words is "five hundred seventeen billion, thirty-six million, seven hundred ninety-six thousand, four hundred ninety-seven".