8041800861 has 48 divisors (see below), whose sum is σ = 12336210432. Its totient is φ = 5040835200.

The previous prime is 8041800847. The next prime is 8041800881. The reversal of 8041800861 is 1680081408.

It is not a de Polignac number, because 8041800861 - 2³⁰ = 6968059037 is a prime.

It is a super-2 number, since 2×8041800861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8041800821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1409731 + ... + 1415423.

It is an arithmetic number, because the mean of its divisors is an integer number (257004384).

Almost surely, 2^8041800861 is an apocalyptic number.

It is an amenable number.

8041800861 is a deficient number, since it is larger than the sum of its proper divisors (4294409571).

8041800861 is a wasteful number, since it uses less digits than its factorization.

8041800861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5874 (or 5871 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 8041800861 is about 89676.0885688041. The cubic root of 8041800861 is about 2003.4773555784.

The spelling of 8041800861 in words is "eight billion, forty-one million, eight hundred thousand, eight hundred sixty-one".