9658539073 has 2 divisors, whose sum is σ = 9658539074. Its totient is φ = 9658539072.

The previous prime is 9658539071. The next prime is 9658539157. The reversal of 9658539073 is 3709358569.

It is a happy number.

9658539073 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6559056144 + 3099482929 = 80988^2 + 55673^2 .

It is a cyclic number.

It is not a de Polignac number, because 9658539073 - 2¹ = 9658539071 is a prime.

Together with 9658539071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9658539071) 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, 4829269536 + 4829269537.

It is an arithmetic number, because the mean of its divisors is an integer number (4829269537).

Almost surely, 2^9658539073 is an apocalyptic number.

It is an amenable number.

9658539073 is a deficient number, since it is larger than the sum of its proper divisors (1).

9658539073 is an equidigital number, since it uses as much as digits as its factorization.

9658539073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The square root of 9658539073 is about 98277.8666486000. The cubic root of 9658539073 is about 2129.6283211226.

The spelling of 9658539073 in words is "nine billion, six hundred fifty-eight million, five hundred thirty-nine thousand, seventy-three".