5136686218 has 8 divisors (see below), whose sum is σ = 7717600548. Its totient is φ = 2564152704.

The previous prime is 5136686197. The next prime is 5136686237. The reversal of 5136686218 is 8126866315.

It can be written as a sum of positive squares in 2 ways, for example, as 4229291089 + 907395129 = 65033^2 + 30123^2 .

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

It is a super-2 number, since 2×5136686218² = 52771090604382287048, which contains 22 as substring.

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, 2093671 + ... + 2096122.

Almost surely, 2^5136686218 is an apocalyptic number.

5136686218 is a deficient number, since it is larger than the sum of its proper divisors (2580914330).

5136686218 is a wasteful number, since it uses less digits than its factorization.

5136686218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190408.

The product of its digits is 414720, while the sum is 46.

The square root of 5136686218 is about 71670.6789279968. The cubic root of 5136686218 is about 1725.4180845329.

The spelling of 5136686218 in words is "five billion, one hundred thirty-six million, six hundred eighty-six thousand, two hundred eighteen".