518668051351 has 4 divisors (see below), whose sum is σ = 536553156600. Its totient is φ = 500782946104.

The previous prime is 518668051331. The next prime is 518668051373. The reversal of 518668051351 is 153150866815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153150866815 = 5 ⋅30630173363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-518668051351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 518668051295 and 518668051304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518668051331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8942552581 + ... + 8942552638.

It is an arithmetic number, because the mean of its divisors is an integer number (134138289150).

Almost surely, 2^518668051351 is an apocalyptic number.

518668051351 is a deficient number, since it is larger than the sum of its proper divisors (17885105249).

518668051351 is a wasteful number, since it uses less digits than its factorization.

518668051351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17885105248.

The product of its (nonzero) digits is 864000, while the sum is 49.

The spelling of 518668051351 in words is "five hundred eighteen billion, six hundred sixty-eight million, fifty-one thousand, three hundred fifty-one".