518100861836 has 24 divisors (see below), whose sum is σ = 927819594240. Its totient is φ = 253010297232.

The previous prime is 518100861797. The next prime is 518100861851. The reversal of 518100861836 is 638168001815.

It is a happy number.

It is a super-2 number, since 2×518100861836² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2978225 + ... + 3147383.

It is an arithmetic number, because the mean of its divisors is an integer number (38659149760).

Almost surely, 2^518100861836 is an apocalyptic number.

It is an amenable number.

518100861836 is a deficient number, since it is larger than the sum of its proper divisors (409718732404).

518100861836 is a wasteful number, since it uses less digits than its factorization.

518100861836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187013 (or 187011 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 518100861836 in words is "five hundred eighteen billion, one hundred million, eight hundred sixty-one thousand, eight hundred thirty-six".