8134385863 has 2 divisors, whose sum is σ = 8134385864. Its totient is φ = 8134385862.

The previous prime is 8134385851. The next prime is 8134385891. The reversal of 8134385863 is 3685834318.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8134385863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8134385843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4067192931 + 4067192932.

It is an arithmetic number, because the mean of its divisors is an integer number (4067192932).

Almost surely, 2^8134385863 is an apocalyptic number.

8134385863 is a deficient number, since it is larger than the sum of its proper divisors (1).

8134385863 is an equidigital number, since it uses as much as digits as its factorization.

8134385863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 49.

The square root of 8134385863 is about 90190.8302600658. The cubic root of 8134385863 is about 2011.1366938386.

The spelling of 8134385863 in words is "eight billion, one hundred thirty-four million, three hundred eighty-five thousand, eight hundred sixty-three".