3861842706811 has 2 divisors, whose sum is σ = 3861842706812. Its totient is φ = 3861842706810.

The previous prime is 3861842706737. The next prime is 3861842706823. The reversal of 3861842706811 is 1186072481683.

3861842706811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3861842706811 - 2²¹ = 3861840609659 is a prime.

It is a super-2 number, since 2×3861842706811² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3861842706851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930921353405 + 1930921353406.

It is an arithmetic number, because the mean of its divisors is an integer number (1930921353406).

Almost surely, 2^{3861842706811} is an apocalyptic number.

3861842706811 is a deficient number, since it is larger than the sum of its proper divisors (1).

3861842706811 is an equidigital number, since it uses as much as digits as its factorization.

3861842706811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 3861842706811 in words is "three trillion, eight hundred sixty-one billion, eight hundred forty-two million, seven hundred six thousand, eight hundred eleven".