8486656573 has 2 divisors, whose sum is σ = 8486656574. Its totient is φ = 8486656572.

The previous prime is 8486656571. The next prime is 8486656579. The reversal of 8486656573 is 3756566848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5064172569 + 3422484004 = 71163^2 + 58502^2 .

It is a cyclic number.

It is not a de Polignac number, because 8486656573 - 2¹ = 8486656571 is a prime.

Together with 8486656571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8486656571) 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, 4243328286 + 4243328287.

It is an arithmetic number, because the mean of its divisors is an integer number (4243328287).

Almost surely, 2^8486656573 is an apocalyptic number.

It is an amenable number.

8486656573 is a deficient number, since it is larger than the sum of its proper divisors (1).

8486656573 is an equidigital number, since it uses as much as digits as its factorization.

8486656573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29030400, while the sum is 58.

The square root of 8486656573 is about 92123.0512575436. The cubic root of 8486656573 is about 2039.7590844713.

The spelling of 8486656573 in words is "eight billion, four hundred eighty-six million, six hundred fifty-six thousand, five hundred seventy-three".