5185108805 has 8 divisors (see below), whose sum is σ = 6223235832. Its totient is φ = 4147350208.

The previous prime is 5185108801. The next prime is 5185108813. The reversal of 5185108805 is 5088015815.

It can be written as a sum of positive squares in 4 ways, for example, as 2325747076 + 2859361729 = 48226^2 + 53473^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5185108805 - 2² = 5185108801 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5185108801) by changing a digit.

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, 60134 + ... + 118263.

It is an arithmetic number, because the mean of its divisors is an integer number (777904479).

Almost surely, 2^5185108805 is an apocalyptic number.

It is an amenable number.

5185108805 is a deficient number, since it is larger than the sum of its proper divisors (1038127027).

5185108805 is a wasteful number, since it uses less digits than its factorization.

5185108805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184215.

The product of its (nonzero) digits is 64000, while the sum is 41.

The square root of 5185108805 is about 72007.6996230264. The cubic root of 5185108805 is about 1730.8228685921.

The spelling of 5185108805 in words is "five billion, one hundred eighty-five million, one hundred eight thousand, eight hundred five".