518539963 has 8 divisors (see below), whose sum is σ = 552742400. Its totient is φ = 485028648.

The previous prime is 518539949. The next prime is 518540003. The reversal of 518539963 is 369935815.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-518539963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518539913) 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, 171231 + ... + 174232.

It is an arithmetic number, because the mean of its divisors is an integer number (69092800).

Almost surely, 2^518539963 is an apocalyptic number.

518539963 is a deficient number, since it is larger than the sum of its proper divisors (34202437).

518539963 is a wasteful number, since it uses less digits than its factorization.

518539963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345561.

The product of its digits is 874800, while the sum is 49.

The square root of 518539963 is about 22771.4725698625. The cubic root of 518539963 is about 803.3918297691.

It can be divided in two parts, 51853 and 9963, that added together give a palindrome (61816).

The spelling of 518539963 in words is "five hundred eighteen million, five hundred thirty-nine thousand, nine hundred sixty-three".