516794843819519 has 16 divisors (see below), whose sum is σ = 519369251637600. Its totient is φ = 514223598859776.

The previous prime is 516794843819503. The next prime is 516794843819587. The reversal of 516794843819519 is 915918348497615.

It is a cyclic number.

It is not a de Polignac number, because 516794843819519 - 2⁴ = 516794843819503 is a prime.

It is a super-2 number, since 2×516794843819519² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516794843819119) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2106930617 + ... + 2107175885.

It is an arithmetic number, because the mean of its divisors is an integer number (32460578227350).

Almost surely, 2^{516794843819519} is an apocalyptic number.

516794843819519 is a deficient number, since it is larger than the sum of its proper divisors (2574407818081).

516794843819519 is a wasteful number, since it uses less digits than its factorization.

516794843819519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251674.

The product of its digits is 2351462400, while the sum is 80.

The spelling of 516794843819519 in words is "five hundred sixteen trillion, seven hundred ninety-four billion, eight hundred forty-three million, eight hundred nineteen thousand, five hundred nineteen".