12388365143406 has 96 divisors (see below), whose sum is σ = 32296915123200. Its totient is φ = 3352572970560.

The previous prime is 12388365143369. The next prime is 12388365143411. The reversal of 12388365143406 is 60434156388321.

12388365143406 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 83 + 6 + 514 + 3 + 40 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11549896 + ... + 12576836.

It is an arithmetic number, because the mean of its divisors is an integer number (336426199200).

Almost surely, 2^{12388365143406} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12388365143406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16148457561600).

12388365143406 is an abundant number, since it is smaller than the sum of its proper divisors (19908549979794).

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

12388365143406 is a wasteful number, since it uses less digits than its factorization.

12388365143406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032014 (or 1032011 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 12388365143406 in words is "twelve trillion, three hundred eighty-eight billion, three hundred sixty-five million, one hundred forty-three thousand, four hundred six".