18585585854 has 16 divisors (see below), whose sum is σ = 30416449536. Its totient is φ = 8446973400.

The previous prime is 18585585853. The next prime is 18585585871. The reversal of 18585585854 is 45858558581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18585585853) 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, 153539 + ... + 246465.

It is an arithmetic number, because the mean of its divisors is an integer number (1901028096).

Almost surely, 2^18585585854 is an apocalyptic number.

18585585854 is a deficient number, since it is larger than the sum of its proper divisors (11830863682).

18585585854 is a wasteful number, since it uses less digits than its factorization.

18585585854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102031.

The product of its digits is 51200000, while the sum is 62.

The spelling of 18585585854 in words is "eighteen billion, five hundred eighty-five million, five hundred eighty-five thousand, eight hundred fifty-four".