6408585089 has 2 divisors, whose sum is σ = 6408585090. Its totient is φ = 6408585088.

The previous prime is 6408585067. The next prime is 6408585103. The reversal of 6408585089 is 9805858046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6163506064 + 245079025 = 78508^2 + 15655^2 .

It is a cyclic number.

It is not a de Polignac number, because 6408585089 - 2¹² = 6408580993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6408585089.

It is not a weakly prime, because it can be changed into another prime (6408585389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204292544 + 3204292545.

It is an arithmetic number, because the mean of its divisors is an integer number (3204292545).

Almost surely, 2^6408585089 is an apocalyptic number.

It is an amenable number.

6408585089 is a deficient number, since it is larger than the sum of its proper divisors (1).

6408585089 is an equidigital number, since it uses as much as digits as its factorization.

6408585089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The square root of 6408585089 is about 80053.6388242283. The cubic root of 6408585089 is about 1857.4653386256.

The spelling of 6408585089 in words is "six billion, four hundred eight million, five hundred eighty-five thousand, eighty-nine".