518856860300404 has 24 divisors (see below), whose sum is σ = 910027797021000. Its totient is φ = 258848925941760.

The previous prime is 518856860300381. The next prime is 518856860300419. The reversal of 518856860300404 is 404003068658815.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 290232178584804 + 228624681715600 = 17036202^2 + 15120340^2 .

It is a congruent number.

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, 296309364 + ... + 298055284.

It is an arithmetic number, because the mean of its divisors is an integer number (37917824875875).

Almost surely, 2^{518856860300404} is an apocalyptic number.

It is an amenable number.

518856860300404 is a deficient number, since it is larger than the sum of its proper divisors (391170936720596).

518856860300404 is a wasteful number, since it uses less digits than its factorization.

518856860300404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911843 (or 1911841 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 58.

The spelling of 518856860300404 in words is "five hundred eighteen trillion, eight hundred fifty-six billion, eight hundred sixty million, three hundred thousand, four hundred four".