517908068 has 12 divisors (see below), whose sum is σ = 906498432. Its totient is φ = 258908520.

The previous prime is 517908067. The next prime is 517908091. The reversal of 517908068 is 860809715.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (517908067) 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, 39521 + ... + 50967.

It is an arithmetic number, because the mean of its divisors is an integer number (75541536).

Almost surely, 2^517908068 is an apocalyptic number.

It is an amenable number.

517908068 is a deficient number, since it is larger than the sum of its proper divisors (388590364).

517908068 is a wasteful number, since it uses less digits than its factorization.

517908068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22762 (or 22760 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 517908068 is about 22757.5936337742. The cubic root of 517908068 is about 803.0653582219.

The spelling of 517908068 in words is "five hundred seventeen million, nine hundred eight thousand, sixty-eight".