4118806861 has 8 divisors (see below), whose sum is σ = 4519330200. Its totient is φ = 3730239552.

The previous prime is 4118806841. The next prime is 4118806877. The reversal of 4118806861 is 1686088114.

It can be written as a sum of positive squares in 4 ways, for example, as 732730761 + 3386076100 = 27069^2 + 58190^2 .

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

It is not a de Polignac number, because 4118806861 - 2¹⁹ = 4118282573 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 (4118806841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2988286 + ... + 2989663.

It is an arithmetic number, because the mean of its divisors is an integer number (564916275).

Almost surely, 2^4118806861 is an apocalyptic number.

It is an amenable number.

4118806861 is a deficient number, since it is larger than the sum of its proper divisors (400523339).

4118806861 is a wasteful number, since it uses less digits than its factorization.

4118806861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5978015.

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 4118806861 is about 64177.9312614547. The cubic root of 4118806861 is about 1602.9641486077.

The spelling of 4118806861 in words is "four billion, one hundred eighteen million, eight hundred six thousand, eight hundred sixty-one".