518535368843 has 2 divisors, whose sum is σ = 518535368844. Its totient is φ = 518535368842.

The previous prime is 518535368809. The next prime is 518535368849. The reversal of 518535368843 is 348863535815.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-518535368843 is a prime.

It is a super-2 number, since 2×518535368843² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (518535368849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259267684421 + 259267684422.

It is an arithmetic number, because the mean of its divisors is an integer number (259267684422).

Almost surely, 2^518535368843 is an apocalyptic number.

518535368843 is a deficient number, since it is larger than the sum of its proper divisors (1).

518535368843 is an equidigital number, since it uses as much as digits as its factorization.

518535368843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472000, while the sum is 59.

The spelling of 518535368843 in words is "five hundred eighteen billion, five hundred thirty-five million, three hundred sixty-eight thousand, eight hundred forty-three".