518271680 has 28 divisors (see below), whose sum is σ = 1234135200. Its totient is φ = 207308544.

The previous prime is 518271667. The next prime is 518271697. The reversal of 518271680 is 86172815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809480 + ... + 810119.

Almost surely, 2^518271680 is an apocalyptic number.

It is an amenable number.

518271680 is an abundant number, since it is smaller than the sum of its proper divisors (715863520).

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

518271680 is a wasteful number, since it uses less digits than its factorization.

518271680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619616 (or 1619606 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 518271680 is about 22765.5810380495. The cubic root of 518271680 is about 803.2532525022.

The spelling of 518271680 in words is "five hundred eighteen million, two hundred seventy-one thousand, six hundred eighty".