8715963889 has 2 divisors, whose sum is σ = 8715963890. Its totient is φ = 8715963888.

The previous prime is 8715963887. The next prime is 8715963911. The reversal of 8715963889 is 9883695178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8437341025 + 278622864 = 91855^2 + 16692^2 .

It is a cyclic number.

It is not a de Polignac number, because 8715963889 - 2¹ = 8715963887 is a prime.

Together with 8715963887, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8715963889.

It is not a weakly prime, because it can be changed into another prime (8715963887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4357981944 + 4357981945.

It is an arithmetic number, because the mean of its divisors is an integer number (4357981945).

Almost surely, 2^8715963889 is an apocalyptic number.

It is an amenable number.

8715963889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8715963889 is an equidigital number, since it uses as much as digits as its factorization.

8715963889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 64.

The square root of 8715963889 is about 93359.3267381465. The cubic root of 8715963889 is about 2057.9673204323.

The spelling of 8715963889 in words is "eight billion, seven hundred fifteen million, nine hundred sixty-three thousand, eight hundred eighty-nine".