518829208804 has 27 divisors (see below), whose sum is σ = 914883231171. Its totient is φ = 257448911160.

The previous prime is 518829208787. The next prime is 518829208811. The reversal of 518829208804 is 408802928815.

The square root of 518829208804 is 720298.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×518829208804² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 200241549 + ... + 200244139.

Almost surely, 2^518829208804 is an apocalyptic number.

518829208804 is the 720298-th square number.

It is an amenable number.

518829208804 is a deficient number, since it is larger than the sum of its proper divisors (396054022367).

518829208804 is an frugal number, since it uses more digits than its factorization.

518829208804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5464 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 55.

The spelling of 518829208804 in words is "five hundred eighteen billion, eight hundred twenty-nine million, two hundred eight thousand, eight hundred four".