518673081 has 8 divisors (see below), whose sum is σ = 691745184. Its totient is φ = 345691520.

The previous prime is 518673053. The next prime is 518673097. The reversal of 518673081 is 180376815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 518673081 - 2²² = 514478777 is a prime.

It is a super-2 number, since 2×518673081² = 538043529908065122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (518673011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7896 + ... + 33161.

It is an arithmetic number, because the mean of its divisors is an integer number (86468148).

Almost surely, 2^518673081 is an apocalyptic number.

It is an amenable number.

518673081 is a deficient number, since it is larger than the sum of its proper divisors (173072103).

518673081 is a wasteful number, since it uses less digits than its factorization.

518673081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45271.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 518673081 is about 22774.3952938382. The cubic root of 518673081 is about 803.4605719882.

The spelling of 518673081 in words is "five hundred eighteen million, six hundred seventy-three thousand, eighty-one".