18618615827112 has 128 divisors (see below), whose sum is σ = 54958326128640. Its totient is φ = 5143665680640.

The previous prime is 18618615827099. The next prime is 18618615827129. The reversal of 18618615827112 is 21172851681681.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4675998 + ... + 7687794.

It is an arithmetic number, because the mean of its divisors is an integer number (429361922880).

Almost surely, 2^{18618615827112} is an apocalyptic number.

18618615827112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18618615827112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27479163064320).

18618615827112 is an abundant number, since it is smaller than the sum of its proper divisors (36339710301528).

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

18618615827112 is a wasteful number, since it uses less digits than its factorization.

18618615827112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013031 (or 3013027 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 57.

The spelling of 18618615827112 in words is "eighteen trillion, six hundred eighteen billion, six hundred fifteen million, eight hundred twenty-seven thousand, one hundred twelve".