518355880873 has 4 divisors (see below), whose sum is σ = 545637769360. Its totient is φ = 491073992388.

The previous prime is 518355880871. The next prime is 518355880879. The reversal of 518355880873 is 378088553815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 518355880873 - 2¹ = 518355880871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518355880871) 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, 13640944215 + ... + 13640944252.

It is an arithmetic number, because the mean of its divisors is an integer number (136409442340).

Almost surely, 2^518355880873 is an apocalyptic number.

It is an amenable number.

518355880873 is a deficient number, since it is larger than the sum of its proper divisors (27281888487).

518355880873 is a wasteful number, since it uses less digits than its factorization.

518355880873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27281888486.

The product of its (nonzero) digits is 32256000, while the sum is 61.

The spelling of 518355880873 in words is "five hundred eighteen billion, three hundred fifty-five million, eight hundred eighty thousand, eight hundred seventy-three".