8450439489 has 12 divisors (see below), whose sum is σ = 12207328276. Its totient is φ = 5633101152.

The previous prime is 8450439469. The next prime is 8450439493. The reversal of 8450439489 is 9849340548.

8450439489 is a `hidden beast` number, since 84 + 50 + 4 + 39 + 489 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8097300225 + 353139264 = 89985^2 + 18792^2 .

It is not a de Polignac number, because 8450439489 - 2⁸ = 8450439233 is a prime.

It is a super-2 number, since 2×8450439489² (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 (8450439419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75147 + ... + 150159.

Almost surely, 2^8450439489 is an apocalyptic number.

It is an amenable number.

8450439489 is a deficient number, since it is larger than the sum of its proper divisors (3756888787).

8450439489 is a wasteful number, since it uses less digits than its factorization.

8450439489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87536 (or 87533 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 8450439489 is about 91926.2720281857. The cubic root of 8450439489 is about 2036.8533676333.

The spelling of 8450439489 in words is "eight billion, four hundred fifty million, four hundred thirty-nine thousand, four hundred eighty-nine".