12918830343078 has 288 divisors, whose sum is σ = 30846132868320. Its totient is φ = 3599714764800.

The previous prime is 12918830343077. The next prime is 12918830343121. The reversal of 12918830343078 is 87034303881921.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12918830343077) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2684151000 + ... + 2684155812.

It is an arithmetic number, because the mean of its divisors is an integer number (107104628015).

Almost surely, 2^{12918830343078} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12918830343078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15423066434160).

12918830343078 is an abundant number, since it is smaller than the sum of its proper divisors (17927302525242).

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

12918830343078 is a wasteful number, since it uses less digits than its factorization.

12918830343078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156 (or 5122 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 12918830343078 in words is "twelve trillion, nine hundred eighteen billion, eight hundred thirty million, three hundred forty-three thousand, seventy-eight".