8626552489 has 2 divisors, whose sum is σ = 8626552490. Its totient is φ = 8626552488.

The previous prime is 8626552421. The next prime is 8626552547. The reversal of 8626552489 is 9842556268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6097267225 + 2529285264 = 78085^2 + 50292^2 .

It is a cyclic number.

It is not a de Polignac number, because 8626552489 - 2⁹ = 8626551977 is a prime.

It is not a weakly prime, because it can be changed into another prime (8626552189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4313276244 + 4313276245.

It is an arithmetic number, because the mean of its divisors is an integer number (4313276245).

Almost surely, 2^8626552489 is an apocalyptic number.

It is an amenable number.

8626552489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8626552489 is an equidigital number, since it uses as much as digits as its factorization.

8626552489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 55.

The square root of 8626552489 is about 92879.2360487531. The cubic root of 8626552489 is about 2050.9060035753.

The spelling of 8626552489 in words is "eight billion, six hundred twenty-six million, five hundred fifty-two thousand, four hundred eighty-nine".