8686446877 has 2 divisors, whose sum is σ = 8686446878. Its totient is φ = 8686446876.

The previous prime is 8686446851. The next prime is 8686446917. The reversal of 8686446877 is 7786446868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8174148921 + 512297956 = 90411^2 + 22634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8686446877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8686446827) 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, 4343223438 + 4343223439.

It is an arithmetic number, because the mean of its divisors is an integer number (4343223439).

Almost surely, 2^8686446877 is an apocalyptic number.

It is an amenable number.

8686446877 is a deficient number, since it is larger than the sum of its proper divisors (1).

8686446877 is an equidigital number, since it uses as much as digits as its factorization.

8686446877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86704128, while the sum is 64.

The square root of 8686446877 is about 93201.1098485420. The cubic root of 8686446877 is about 2055.6415594060.

Subtracting from 8686446877 its reverse (7786446868), we obtain a palindrome (900000009).

The spelling of 8686446877 in words is "eight billion, six hundred eighty-six million, four hundred forty-six thousand, eight hundred seventy-seven".