518041494874 has 8 divisors (see below), whose sum is σ = 777205074708. Its totient is φ = 258973136640.

The previous prime is 518041494743. The next prime is 518041494889. The reversal of 518041494874 is 478494140815.

It can be written as a sum of positive squares in 2 ways, for example, as 472371667849 + 45669827025 = 687293^2 + 213705^2 .

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

It is a super-2 number, since 2×518041494874² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23791797 + ... + 23813560.

Almost surely, 2^518041494874 is an apocalyptic number.

518041494874 is a deficient number, since it is larger than the sum of its proper divisors (259163579834).

518041494874 is a wasteful number, since it uses less digits than its factorization.

518041494874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47610800.

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 518041494874 in words is "five hundred eighteen billion, forty-one million, four hundred ninety-four thousand, eight hundred seventy-four".