8409658369 has 6 divisors (see below), whose sum is σ = 9782663874. Its totient is φ = 7208278560.

The previous prime is 8409658333. The next prime is 8409658391. The reversal of 8409658369 is 9638569048.

8409658369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4666665969 + 3742992400 = 68313^2 + 61180^2 .

It is not a de Polignac number, because 8409658369 - 2¹³ = 8409650177 is a prime.

It is a super-2 number, since 2×8409658369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8409658319) 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 in 5 ways as a sum of consecutive naturals, for example, 85812792 + ... + 85812889.

It is an arithmetic number, because the mean of its divisors is an integer number (1630443979).

Almost surely, 2^8409658369 is an apocalyptic number.

It is an amenable number.

8409658369 is a deficient number, since it is larger than the sum of its proper divisors (1373005505).

8409658369 is a wasteful number, since it uses less digits than its factorization.

8409658369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171625695 (or 171625688 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The square root of 8409658369 is about 91704.1894844505. The cubic root of 8409658369 is about 2033.5715208536.

The spelling of 8409658369 in words is "eight billion, four hundred nine million, six hundred fifty-eight thousand, three hundred sixty-nine".