18302228680418 has 8 divisors (see below), whose sum is σ = 28091792858448. Its totient is φ = 8938297727604.

The previous prime is 18302228680399. The next prime is 18302228680429. The reversal of 18302228680418 is 81408682220381.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18302228680418.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106408306196 + ... + 106408306367.

It is an arithmetic number, because the mean of its divisors is an integer number (3511474107306).

Almost surely, 2^{18302228680418} is an apocalyptic number.

18302228680418 is a deficient number, since it is larger than the sum of its proper divisors (9789564178030).

18302228680418 is a wasteful number, since it uses less digits than its factorization.

18302228680418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212816612608.

The product of its (nonzero) digits is 2359296, while the sum is 53.

The spelling of 18302228680418 in words is "eighteen trillion, three hundred two billion, two hundred twenty-eight million, six hundred eighty thousand, four hundred eighteen".