18585840433436 has 12 divisors (see below), whose sum is σ = 32528249534760. Its totient is φ = 9292054852080.

The previous prime is 18585840433339. The next prime is 18585840433453. The reversal of 18585840433436 is 63433404858581.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216292835 + ... + 216378746.

It is an arithmetic number, because the mean of its divisors is an integer number (2710687461230).

Almost surely, 2^{18585840433436} is an apocalyptic number.

It is an amenable number.

18585840433436 is a deficient number, since it is larger than the sum of its proper divisors (13942409101324).

18585840433436 is a wasteful number, since it uses less digits than its factorization.

18585840433436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432682324 (or 432682322 counting only the distinct ones).

The product of its (nonzero) digits is 132710400, while the sum is 62.

The spelling of 18585840433436 in words is "eighteen trillion, five hundred eighty-five billion, eight hundred forty million, four hundred thirty-three thousand, four hundred thirty-six".