12018384071928 has 48 divisors (see below), whose sum is σ = 35053620212520. Its totient is φ = 3697964329536.

The previous prime is 12018384071923. The next prime is 12018384071987. The reversal of 12018384071928 is 82917048381021.

12018384071928 is a `hidden beast` number, since 1 + 2 + 0 + 18 + 38 + 407 + 192 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018384071923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6420076026 + ... + 6420077897.

Almost surely, 2^{12018384071928} is an apocalyptic number.

12018384071928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12018384071928 is an abundant number, since it is smaller than the sum of its proper divisors (23035236140592).

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

12018384071928 is a wasteful number, since it uses less digits than its factorization.

12018384071928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12840153948 (or 12840153941 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 12018384071928 in words is "twelve trillion, eighteen billion, three hundred eighty-four million, seventy-one thousand, nine hundred twenty-eight".