18008430548 has 12 divisors (see below), whose sum is σ = 33368562612. Its totient is φ = 8474555520.

The previous prime is 18008430499. The next prime is 18008430563. The reversal of 18008430548 is 84503480081.

It can be written as a sum of positive squares in 2 ways, for example, as 13661401924 + 4347028624 = 116882^2 + 65932^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 132414863 + ... + 132414998.

It is an arithmetic number, because the mean of its divisors is an integer number (2780713551).

Almost surely, 2^18008430548 is an apocalyptic number.

It is an amenable number.

18008430548 is a deficient number, since it is larger than the sum of its proper divisors (15360132064).

18008430548 is a wasteful number, since it uses less digits than its factorization.

18008430548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264829882 (or 264829880 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

It can be divided in two parts, 1800 and 8430548, that added together give a palindrome (8432348).

The spelling of 18008430548 in words is "eighteen billion, eight million, four hundred thirty thousand, five hundred forty-eight".