518653420213 has 16 divisors (see below), whose sum is σ = 539793817200. Its totient is φ = 497737497600.

The previous prime is 518653420199. The next prime is 518653420297. The reversal of 518653420213 is 312024356815.

It can be written as a sum of positive squares in 8 ways, for example, as 43514794404 + 475138625809 = 208602^2 + 689303^2 .

It is a cyclic number.

It is not a de Polignac number, because 518653420213 - 2⁹ = 518653419701 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 (518653420613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3872263 + ... + 4003963.

It is an arithmetic number, because the mean of its divisors is an integer number (33737113575).

Almost surely, 2^518653420213 is an apocalyptic number.

It is an amenable number.

518653420213 is a deficient number, since it is larger than the sum of its proper divisors (21140396987).

518653420213 is a wasteful number, since it uses less digits than its factorization.

518653420213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132552.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 518653420213 in words is "five hundred eighteen billion, six hundred fifty-three million, four hundred twenty thousand, two hundred thirteen".