518785916 has 12 divisors (see below), whose sum is σ = 990409560. Its totient is φ = 235811760.

The previous prime is 518785913. The next prime is 518785963. The reversal of 518785916 is 619587815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518785913) 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 3 ways as a sum of consecutive naturals, for example, 5895251 + ... + 5895338.

It is an arithmetic number, because the mean of its divisors is an integer number (82534130).

Almost surely, 2^518785916 is an apocalyptic number.

It is an amenable number.

518785916 is a deficient number, since it is larger than the sum of its proper divisors (471623644).

518785916 is a wasteful number, since it uses less digits than its factorization.

518785916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11790604 (or 11790602 counting only the distinct ones).

The product of its digits is 604800, while the sum is 50.

The square root of 518785916 is about 22776.8723928462. The cubic root of 518785916 is about 803.5188308438.

The spelling of 518785916 in words is "five hundred eighteen million, seven hundred eighty-five thousand, nine hundred sixteen".