8346564881 has 2 divisors, whose sum is σ = 8346564882. Its totient is φ = 8346564880.

The previous prime is 8346564871. The next prime is 8346564883. The reversal of 8346564881 is 1884656438.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4204355281 + 4142209600 = 64841^2 + 64360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8346564881 is a prime.

It is a super-2 number, since 2×8346564881² (a number of 21 digits) contains 22 as substring.

Together with 8346564883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8346564883) 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, 4173282440 + 4173282441.

It is an arithmetic number, because the mean of its divisors is an integer number (4173282441).

Almost surely, 2^8346564881 is an apocalyptic number.

It is an amenable number.

8346564881 is a deficient number, since it is larger than the sum of its proper divisors (1).

8346564881 is an equidigital number, since it uses as much as digits as its factorization.

8346564881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4423680, while the sum is 53.

The square root of 8346564881 is about 91359.5363440511. The cubic root of 8346564881 is about 2028.4731237214.

The spelling of 8346564881 in words is "eight billion, three hundred forty-six million, five hundred sixty-four thousand, eight hundred eighty-one".