5218135682 has 32 divisors (see below), whose sum is σ = 8157043440. Its totient is φ = 2501678080.

The previous prime is 5218135679. The next prime is 5218135687. The reversal of 5218135682 is 2865318125.

It can be written as a sum of positive squares in 8 ways, for example, as 2178929041 + 3039206641 = 46679^2 + 55129^2 .

It is a super-4 number, since 4×5218135682⁴ (a number of 40 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (5218135687) 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, 1260488 + ... + 1264620.

Almost surely, 2^5218135682 is an apocalyptic number.

5218135682 is a deficient number, since it is larger than the sum of its proper divisors (2938907758).

5218135682 is a wasteful number, since it uses less digits than its factorization.

5218135682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4438.

The product of its digits is 115200, while the sum is 41.

The square root of 5218135682 is about 72236.6643886607. The cubic root of 5218135682 is about 1734.4899554104.

The spelling of 5218135682 in words is "five billion, two hundred eighteen million, one hundred thirty-five thousand, six hundred eighty-two".