4081698187 has 12 divisors (see below), whose sum is σ = 4767813336. Its totient is φ = 3484071360.

The previous prime is 4081698109. The next prime is 4081698191. The reversal of 4081698187 is 7818961804.

It is a happy number.

It is not a de Polignac number, because 4081698187 - 2¹¹ = 4081696139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4081698287) 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 11 ways as a sum of consecutive naturals, for example, 161013 + ... + 184630.

It is an arithmetic number, because the mean of its divisors is an integer number (397317778).

Almost surely, 2^4081698187 is an apocalyptic number.

4081698187 is a deficient number, since it is larger than the sum of its proper divisors (686115149).

4081698187 is a wasteful number, since it uses less digits than its factorization.

4081698187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345898 (or 345891 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 52.

The square root of 4081698187 is about 63888.1693821321. The cubic root of 4081698187 is about 1598.1356131480.

The spelling of 4081698187 in words is "four billion, eighty-one million, six hundred ninety-eight thousand, one hundred eighty-seven".