8189359465 has 12 divisors (see below), whose sum is σ = 11431677636. Its totient is φ = 5615560608.

The previous prime is 8189359463. The next prime is 8189359469. The reversal of 8189359465 is 5649539818.

It can be written as a sum of positive squares in 2 ways, for example, as 5450721241 + 2738638224 = 73829^2 + 52332^2 .

It is not a de Polignac number, because 8189359465 - 2¹ = 8189359463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8189359463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16712734 + ... + 16713223.

It is an arithmetic number, because the mean of its divisors is an integer number (952639803).

Almost surely, 2^8189359465 is an apocalyptic number.

It is an amenable number.

8189359465 is a deficient number, since it is larger than the sum of its proper divisors (3242318171).

8189359465 is a wasteful number, since it uses less digits than its factorization.

8189359465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33425976 (or 33425969 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 58.

The square root of 8189359465 is about 90495.0797833783. The cubic root of 8189359465 is about 2015.6570637417.

The spelling of 8189359465 in words is "eight billion, one hundred eighty-nine million, three hundred fifty-nine thousand, four hundred sixty-five".