518341373644 has 12 divisors (see below), whose sum is σ = 907453006768. Its totient is φ = 259069086000.

The previous prime is 518341373567. The next prime is 518341373681. The reversal of 518341373644 is 446373143815.

It is a super-2 number, since 2×518341373644² (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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25388727 + ... + 25409134.

Almost surely, 2^518341373644 is an apocalyptic number.

It is an amenable number.

518341373644 is a deficient number, since it is larger than the sum of its proper divisors (389111633124).

518341373644 is a wasteful number, since it uses less digits than its factorization.

518341373644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50800416 (or 50800414 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 49.

The spelling of 518341373644 in words is "five hundred eighteen billion, three hundred forty-one million, three hundred seventy-three thousand, six hundred forty-four".