9458606981 has 2 divisors, whose sum is σ = 9458606982. Its totient is φ = 9458606980.

The previous prime is 9458606947. The next prime is 9458607001. The reversal of 9458606981 is 1896068549.

It is a happy number.

9458606981 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., 9164998756 + 293608225 = 95734^2 + 17135^2 .

It is a cyclic number.

It is not a de Polignac number, because 9458606981 - 2¹⁰ = 9458605957 is a prime.

It is a super-2 number, since 2×9458606981² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9458602981) 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, 4729303490 + 4729303491.

It is an arithmetic number, because the mean of its divisors is an integer number (4729303491).

Almost surely, 2^9458606981 is an apocalyptic number.

It is an amenable number.

9458606981 is a deficient number, since it is larger than the sum of its proper divisors (1).

9458606981 is an equidigital number, since it uses as much as digits as its factorization.

9458606981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The square root of 9458606981 is about 97255.3699340042. The cubic root of 9458606981 is about 2114.8312869276.

The spelling of 9458606981 in words is "nine billion, four hundred fifty-eight million, six hundred six thousand, nine hundred eighty-one".