6486156218 has 16 divisors (see below), whose sum is σ = 9915751080. Its totient is φ = 3180942336.

The previous prime is 6486156199. The next prime is 6486156283. The reversal of 6486156218 is 8126516846.

It can be written as a sum of positive squares in 4 ways, for example, as 6115709209 + 370447009 = 78203^2 + 19247^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465578 + ... + 479306.

Almost surely, 2^6486156218 is an apocalyptic number.

6486156218 is a deficient number, since it is larger than the sum of its proper divisors (3429594862).

6486156218 is a wasteful number, since it uses less digits than its factorization.

6486156218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18241.

The product of its digits is 552960, while the sum is 47.

The square root of 6486156218 is about 80536.6762289083. The cubic root of 6486156218 is about 1864.9297117887.

The spelling of 6486156218 in words is "six billion, four hundred eighty-six million, one hundred fifty-six thousand, two hundred eighteen".