8041185861 has 8 divisors (see below), whose sum is σ = 11352262464. Its totient is φ = 5045449920.

The previous prime is 8041185853. The next prime is 8041185907. The reversal of 8041185861 is 1685811408.

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

It is not a de Polignac number, because 8041185861 - 2³ = 8041185853 is a prime.

It is a super-2 number, since 2×8041185861² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8041181861) 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, 78835105 + ... + 78835206.

It is an arithmetic number, because the mean of its divisors is an integer number (1419032808).

Almost surely, 2^8041185861 is an apocalyptic number.

It is an amenable number.

8041185861 is a deficient number, since it is larger than the sum of its proper divisors (3311076603).

8041185861 is a wasteful number, since it uses less digits than its factorization.

8041185861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157670331.

The product of its (nonzero) digits is 61440, while the sum is 42.

The square root of 8041185861 is about 89672.6594955229. The cubic root of 8041185861 is about 2003.4262820272.

The spelling of 8041185861 in words is "eight billion, forty-one million, one hundred eighty-five thousand, eight hundred sixty-one".