6918828005 has 6 divisors (see below), whose sum is σ = 8302816806. Its totient is φ = 5534913608.

The previous prime is 6918827957. The next prime is 6918828013. The reversal of 6918828005 is 5008288196.

It can be written as a sum of positive squares in only one way, i.e., 5535062404 + 1383765601 = 74398^2 + 37199^2 .

It is not a de Polignac number, because 6918828005 - 2²² = 6914633701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167396 + ... + 204594.

It is an arithmetic number, because the mean of its divisors is an integer number (1383802801).

Almost surely, 2^6918828005 is an apocalyptic number.

It is an amenable number.

6918828005 is a deficient number, since it is larger than the sum of its proper divisors (1383988801).

6918828005 is an frugal number, since it uses more digits than its factorization.

6918828005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74403 (or 37204 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 6918828005 is about 83179.4926950147. The cubic root of 6918828005 is about 1905.5083002816.

The spelling of 6918828005 in words is "six billion, nine hundred eighteen million, eight hundred twenty-eight thousand, five".