518030434511 has 4 divisors (see below), whose sum is σ = 518475861672. Its totient is φ = 517585007352.

The previous prime is 518030434459. The next prime is 518030434529. The reversal of 518030434511 is 115434030815.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 518030434511 - 2³⁰ = 516956692687 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 (518030434531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222711836 + ... + 222714161.

It is an arithmetic number, because the mean of its divisors is an integer number (129618965418).

Almost surely, 2^518030434511 is an apocalyptic number.

518030434511 is a deficient number, since it is larger than the sum of its proper divisors (445427161).

518030434511 is a wasteful number, since it uses less digits than its factorization.

518030434511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445427160.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 518030434511 in words is "five hundred eighteen billion, thirty million, four hundred thirty-four thousand, five hundred eleven".