6918315122 has 16 divisors (see below), whose sum is σ = 10551240600. Its totient is φ = 3401274240.

The previous prime is 6918315119. The next prime is 6918315137. The reversal of 6918315122 is 2215138196.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1656408601 + 5261906521 = 40699^2 + 72539^2 .

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, 422504 + ... + 438572.

Almost surely, 2^6918315122 is an apocalyptic number.

6918315122 is a deficient number, since it is larger than the sum of its proper divisors (3632925478).

6918315122 is a wasteful number, since it uses less digits than its factorization.

6918315122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19661.

The product of its digits is 25920, while the sum is 38.

The square root of 6918315122 is about 83176.4096484093. The cubic root of 6918315122 is about 1905.4612149004.

The spelling of 6918315122 in words is "six billion, nine hundred eighteen million, three hundred fifteen thousand, one hundred twenty-two".