9654871321 has 2 divisors, whose sum is σ = 9654871322. Its totient is φ = 9654871320.

The previous prime is 9654871283. The next prime is 9654871327. The reversal of 9654871321 is 1231784569.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6176230921 + 3478640400 = 78589^2 + 58980^2 .

It is a cyclic number.

It is not a de Polignac number, because 9654871321 - 2¹⁵ = 9654838553 is a prime.

It is a pancake number, because a pancake can be divided into 9654871321 parts by 138959 straight cuts.

It is not a weakly prime, because it can be changed into another prime (9654871327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4827435660 + 4827435661.

It is an arithmetic number, because the mean of its divisors is an integer number (4827435661).

Almost surely, 2^9654871321 is an apocalyptic number.

It is an amenable number.

9654871321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9654871321 is an equidigital number, since it uses as much as digits as its factorization.

9654871321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 9654871321 is about 98259.2047647446. The cubic root of 9654871321 is about 2129.3587172899.

The spelling of 9654871321 in words is "nine billion, six hundred fifty-four million, eight hundred seventy-one thousand, three hundred twenty-one".