8544432418 has 16 divisors (see below), whose sum is σ = 13061382840. Its totient is φ = 4190674176.

The previous prime is 8544432383. The next prime is 8544432419. The reversal of 8544432418 is 8142344458.

It can be written as a sum of positive squares in 4 ways, for example, as 8410173849 + 134258569 = 91707^2 + 11587^2 .

It is not an unprimeable number, because it can be changed into a prime (8544432419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916396 + ... + 925672.

Almost surely, 2^8544432418 is an apocalyptic number.

8544432418 is a deficient number, since it is larger than the sum of its proper divisors (4516950422).

8544432418 is a wasteful number, since it uses less digits than its factorization.

8544432418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18021.

The product of its digits is 491520, while the sum is 43.

The square root of 8544432418 is about 92436.0991063556. The cubic root of 8544432418 is about 2044.3774080889.

The spelling of 8544432418 in words is "eight billion, five hundred forty-four million, four hundred thirty-two thousand, four hundred eighteen".