518117479 has 8 divisors (see below), whose sum is σ = 594967680. Its totient is φ = 446225400.

The previous prime is 518117473. The next prime is 518117489. The reversal of 518117479 is 974711815.

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 518117479 - 2⁵ = 518117447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518117473) 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, 1239307 + ... + 1239724.

It is an arithmetic number, because the mean of its divisors is an integer number (74370960).

Almost surely, 2^518117479 is an apocalyptic number.

518117479 is a deficient number, since it is larger than the sum of its proper divisors (76850201).

518117479 is a wasteful number, since it uses less digits than its factorization.

518117479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479061.

The product of its digits is 70560, while the sum is 43.

The square root of 518117479 is about 22762.1940726284. The cubic root of 518117479 is about 803.1735808128.

The spelling of 518117479 in words is "five hundred eighteen million, one hundred seventeen thousand, four hundred seventy-nine".