3986841811 has 2 divisors, whose sum is σ = 3986841812. Its totient is φ = 3986841810.

The previous prime is 3986841791. The next prime is 3986841841. The reversal of 3986841811 is 1181486893.

3986841811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3986841811 - 2¹⁹ = 3986317523 is a prime.

It is not a weakly prime, because it can be changed into another prime (3986841841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993420905 + 1993420906.

It is an arithmetic number, because the mean of its divisors is an integer number (1993420906).

Almost surely, 2^3986841811 is an apocalyptic number.

3986841811 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986841811 is an equidigital number, since it uses as much as digits as its factorization.

3986841811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 49.

The square root of 3986841811 is about 63141.4428960885. The cubic root of 3986841811 is about 1585.6585296109.

The spelling of 3986841811 in words is "three billion, nine hundred eighty-six million, eight hundred forty-one thousand, eight hundred eleven".