5185353218 has 8 divisors (see below), whose sum is σ = 7779033612. Its totient is φ = 2592342016.

The previous prime is 5185353203. The next prime is 5185353223. The reversal of 5185353218 is 8123535815.

It can be written as a sum of positive squares in 2 ways, for example, as 4800134089 + 385219129 = 69283^2 + 19627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147455 + ... + 179202.

Almost surely, 2^5185353218 is an apocalyptic number.

5185353218 is a deficient number, since it is larger than the sum of its proper divisors (2593680394).

5185353218 is a wasteful number, since it uses less digits than its factorization.

5185353218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334596.

The product of its digits is 144000, while the sum is 41.

The square root of 5185353218 is about 72009.3967340374. The cubic root of 5185353218 is about 1730.8500637117.

The spelling of 5185353218 in words is "five billion, one hundred eighty-five million, three hundred fifty-three thousand, two hundred eighteen".