18708608118618 has 48 divisors (see below), whose sum is σ = 44388484785216. Its totient is φ = 5647718992320.

The previous prime is 18708608118617. The next prime is 18708608118619. The reversal of 18708608118618 is 81681180680781.

18708608118618 is a `hidden beast` number, since 1 + 8 + 7 + 0 + 8 + 6 + 0 + 8 + 1 + 1 + 8 + 618 = 666.

It is an interprime number because it is at equal distance from previous prime (18708608118617) and next prime (18708608118619).

It is not an unprimeable number, because it can be changed into a prime (18708608118611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179582755 + ... + 179686902.

It is an arithmetic number, because the mean of its divisors is an integer number (924760099692).

Almost surely, 2^{18708608118618} is an apocalyptic number.

18708608118618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18708608118618 is an abundant number, since it is smaller than the sum of its proper divisors (25679876666598).

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

18708608118618 is a wasteful number, since it uses less digits than its factorization.

18708608118618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359269939 (or 359269936 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 63.

The spelling of 18708608118618 in words is "eighteen trillion, seven hundred eight billion, six hundred eight million, one hundred eighteen thousand, six hundred eighteen".