518991082 has 8 divisors (see below), whose sum is σ = 799526916. Its totient is φ = 252482112.

The previous prime is 518991059. The next prime is 518991097. The reversal of 518991082 is 280199815.

It can be written as a sum of positive squares in 2 ways, for example, as 518882841 + 108241 = 22779^2 + 329^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 3506623 + ... + 3506770.

Almost surely, 2^518991082 is an apocalyptic number.

518991082 is a deficient number, since it is larger than the sum of its proper divisors (280535834).

518991082 is a wasteful number, since it uses less digits than its factorization.

518991082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013432.

The product of its (nonzero) digits is 51840, while the sum is 43.

The square root of 518991082 is about 22781.3757705719. The cubic root of 518991082 is about 803.6247403093.

The spelling of 518991082 in words is "five hundred eighteen million, nine hundred ninety-one thousand, eighty-two".