9646485689 has 2 divisors, whose sum is σ = 9646485690. Its totient is φ = 9646485688.

The previous prime is 9646485671. The next prime is 9646485697. The reversal of 9646485689 is 9865846469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7870706089 + 1775779600 = 88717^2 + 42140^2 .

It is a cyclic number.

It is not a de Polignac number, because 9646485689 - 2¹⁶ = 9646420153 is a prime.

It is a super-2 number, since 2×9646485689² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9646425689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4823242844 + 4823242845.

It is an arithmetic number, because the mean of its divisors is an integer number (4823242845).

Almost surely, 2^9646485689 is an apocalyptic number.

It is an amenable number.

9646485689 is a deficient number, since it is larger than the sum of its proper divisors (1).

9646485689 is an equidigital number, since it uses as much as digits as its factorization.

9646485689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89579520, while the sum is 65.

The square root of 9646485689 is about 98216.5245210805. The cubic root of 9646485689 is about 2128.7420617161.

The spelling of 9646485689 in words is "nine billion, six hundred forty-six million, four hundred eighty-five thousand, six hundred eighty-nine".