18502218534 has 8 divisors (see below), whose sum is σ = 37004437080. Its totient is φ = 6167406176.

The previous prime is 18502218533. The next prime is 18502218541. The reversal of 18502218534 is 43581220581.

It is a sphenic number, since it is the product of 3 distinct primes.

18502218534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18502218492 and 18502218501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18502218533) 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 3 ways as a sum of consecutive naturals, for example, 1541851539 + ... + 1541851550.

It is an arithmetic number, because the mean of its divisors is an integer number (4625554635).

Almost surely, 2^18502218534 is an apocalyptic number.

18502218534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18502218534 is a wasteful number, since it uses less digits than its factorization.

18502218534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083703094.

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 18502218534 in words is "eighteen billion, five hundred two million, two hundred eighteen thousand, five hundred thirty-four".