8663149889 has 2 divisors, whose sum is σ = 8663149890. Its totient is φ = 8663149888.

The previous prime is 8663149879. The next prime is 8663149949. The reversal of 8663149889 is 9889413668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7414587664 + 1248562225 = 86108^2 + 35335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8663149889 is a prime.

It is not a weakly prime, because it can be changed into another prime (8663149829) 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, 4331574944 + 4331574945.

It is an arithmetic number, because the mean of its divisors is an integer number (4331574945).

Almost surely, 2^8663149889 is an apocalyptic number.

It is an amenable number.

8663149889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8663149889 is an equidigital number, since it uses as much as digits as its factorization.

8663149889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17915904, while the sum is 62.

The square root of 8663149889 is about 93076.0435826534. The cubic root of 8663149889 is about 2053.8021753977.

The spelling of 8663149889 in words is "eight billion, six hundred sixty-three million, one hundred forty-nine thousand, eight hundred eighty-nine".