9414439861 has 2 divisors, whose sum is σ = 9414439862. Its totient is φ = 9414439860.

The previous prime is 9414439777. The next prime is 9414439891. The reversal of 9414439861 is 1689344149.

9414439861 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 can be written as a sum of positive squares in only one way, i.e., 9274845636 + 139594225 = 96306^2 + 11815^2 .

It is a cyclic number.

It is not a de Polignac number, because 9414439861 - 2¹⁷ = 9414308789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9414439891) 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 as a sum of consecutive naturals, namely, 4707219930 + 4707219931.

It is an arithmetic number, because the mean of its divisors is an integer number (4707219931).

Almost surely, 2^9414439861 is an apocalyptic number.

It is an amenable number.

9414439861 is a deficient number, since it is larger than the sum of its proper divisors (1).

9414439861 is an equidigital number, since it uses as much as digits as its factorization.

9414439861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 49.

The square root of 9414439861 is about 97028.0364688475. The cubic root of 9414439861 is about 2111.5344035453.

The spelling of 9414439861 in words is "nine billion, four hundred fourteen million, four hundred thirty-nine thousand, eight hundred sixty-one".