12918465018 has 24 divisors (see below), whose sum is σ = 28892912256. Its totient is φ = 4167246600.

The previous prime is 12918464969. The next prime is 12918465041. The reversal of 12918465018 is 81056481921.

It is a happy number.

12918465018 is a `hidden beast` number, since 12 + 91 + 8 + 46 + 501 + 8 = 666.

12918465018 is digitally balanced in base 5, 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11575128 + ... + 11576243.

It is an arithmetic number, because the mean of its divisors is an integer number (1203871344).

Almost surely, 2^12918465018 is an apocalyptic number.

12918465018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12918465018 is an abundant number, since it is smaller than the sum of its proper divisors (15974447238).

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

12918465018 is a wasteful number, since it uses less digits than its factorization.

12918465018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23151410 (or 23151407 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 12918465018 in words is "twelve billion, nine hundred eighteen million, four hundred sixty-five thousand, eighteen".