12438963018 has 32 divisors (see below), whose sum is σ = 27647568000. Its totient is φ = 4145506848.

The previous prime is 12438962983. The next prime is 12438963041. The reversal of 12438963018 is 81036983421.

12438963018 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 8 + 9 + 630 + 1 + 8 = 666.

12438963018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296155 + ... + 335537.

It is an arithmetic number, because the mean of its divisors is an integer number (863986500).

Almost surely, 2^12438963018 is an apocalyptic number.

12438963018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12438963018 is an abundant number, since it is smaller than the sum of its proper divisors (15208604982).

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

12438963018 is a wasteful number, since it uses less digits than its factorization.

12438963018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45243 (or 45237 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 12438963018 in words is "twelve billion, four hundred thirty-eight million, nine hundred sixty-three thousand, eighteen".