518856860300394 has 64 divisors (see below), whose sum is σ = 1294032073466880. Its totient is φ = 134741023672320.

The previous prime is 518856860300381. The next prime is 518856860300419. The reversal of 518856860300394 is 493003068658815.

It is a Harshad number since it is a multiple of its sum of digits (66).

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 31 ways as a sum of consecutive naturals, for example, 110157364 + ... + 114770895.

It is an arithmetic number, because the mean of its divisors is an integer number (20219251147920).

Almost surely, 2^{518856860300394} is an apocalyptic number.

518856860300394 is an abundant number, since it is smaller than the sum of its proper divisors (775175213166486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518856860300394 is a wasteful number, since it uses less digits than its factorization.

518856860300394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224933275.

The product of its (nonzero) digits is 149299200, while the sum is 66.

The spelling of 518856860300394 in words is "five hundred eighteen trillion, eight hundred fifty-six billion, eight hundred sixty million, three hundred thousand, three hundred ninety-four".