8664143237 has 2 divisors, whose sum is σ = 8664143238. Its totient is φ = 8664143236.

The previous prime is 8664143219. The next prime is 8664143281. The reversal of 8664143237 is 7323414668.

It is an a-pointer prime, because the next prime (8664143281) can be obtained adding 8664143237 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6488946916 + 2175196321 = 80554^2 + 46639^2 .

It is a cyclic number.

It is not a de Polignac number, because 8664143237 - 2¹⁰ = 8664142213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8664143437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4332071618 + 4332071619.

It is an arithmetic number, because the mean of its divisors is an integer number (4332071619).

Almost surely, 2^8664143237 is an apocalyptic number.

It is an amenable number.

8664143237 is a deficient number, since it is larger than the sum of its proper divisors (1).

8664143237 is an equidigital number, since it uses as much as digits as its factorization.

8664143237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 44.

The square root of 8664143237 is about 93081.3796470594. The cubic root of 8664143237 is about 2053.8806711849.

The spelling of 8664143237 in words is "eight billion, six hundred sixty-four million, one hundred forty-three thousand, two hundred thirty-seven".