5681385186 has 32 divisors (see below), whose sum is σ = 11767472640. Its totient is φ = 1826487936.

The previous prime is 5681385163. The next prime is 5681385217. The reversal of 5681385186 is 6815831865.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145615 + ... + 180461.

It is an arithmetic number, because the mean of its divisors is an integer number (367733520).

Almost surely, 2^5681385186 is an apocalyptic number.

5681385186 is an abundant number, since it is smaller than the sum of its proper divisors (6086087454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5681385186 is a wasteful number, since it uses less digits than its factorization.

5681385186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35818.

The product of its digits is 1382400, while the sum is 51.

The square root of 5681385186 is about 75374.9639203894. The cubic root of 5681385186 is about 1784.3693091550.

The spelling of 5681385186 in words is "five billion, six hundred eighty-one million, three hundred eighty-five thousand, one hundred eighty-six".