18352624409 has 16 divisors (see below), whose sum is σ = 21307165440. Its totient is φ = 15483182400.

The previous prime is 18352624403. The next prime is 18352624421. The reversal of 18352624409 is 90442625381.

It is not a de Polignac number, because 18352624409 - 2²⁰ = 18351575833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18352624409.

It is not an unprimeable number, because it can be changed into a prime (18352624403) 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 15 ways as a sum of consecutive naturals, for example, 35567 + ... + 194859.

It is an arithmetic number, because the mean of its divisors is an integer number (1331697840).

Almost surely, 2^18352624409 is an apocalyptic number.

It is an amenable number.

18352624409 is a deficient number, since it is larger than the sum of its proper divisors (2954541031).

18352624409 is a wasteful number, since it uses less digits than its factorization.

18352624409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159560.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 18352624409 in words is "eighteen billion, three hundred fifty-two million, six hundred twenty-four thousand, four hundred nine".