8609428459 has 2 divisors, whose sum is σ = 8609428460. Its totient is φ = 8609428458.

The previous prime is 8609428441. The next prime is 8609428483. The reversal of 8609428459 is 9548249068.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8609428459 - 2⁵ = 8609428427 is a prime.

It is a super-2 number, since 2×8609428459² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8609428489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4304714229 + 4304714230.

It is an arithmetic number, because the mean of its divisors is an integer number (4304714230).

Almost surely, 2^8609428459 is an apocalyptic number.

8609428459 is a deficient number, since it is larger than the sum of its proper divisors (1).

8609428459 is an equidigital number, since it uses as much as digits as its factorization.

8609428459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The square root of 8609428459 is about 92787.0058736675. The cubic root of 8609428459 is about 2049.5480628969.

The spelling of 8609428459 in words is "eight billion, six hundred nine million, four hundred twenty-eight thousand, four hundred fifty-nine".