18018179850312 has 64 divisors (see below), whose sum is σ = 50050888137600. Its totient is φ = 6006013323840.

The previous prime is 18018179850131. The next prime is 18018179850313. The reversal of 18018179850312 is 21305897181081.

18018179850312 is a `hidden beast` number, since 1 + 8 + 0 + 181 + 79 + 85 + 0 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (18018179850313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38087853 + ... + 38558019.

It is an arithmetic number, because the mean of its divisors is an integer number (782045127150).

Almost surely, 2^{18018179850312} is an apocalyptic number.

18018179850312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18018179850312 is an abundant number, since it is smaller than the sum of its proper divisors (32032708287288).

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

18018179850312 is a wasteful number, since it uses less digits than its factorization.

18018179850312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647603 (or 647593 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 54.

The spelling of 18018179850312 in words is "eighteen trillion, eighteen billion, one hundred seventy-nine million, eight hundred fifty thousand, three hundred twelve".