243678207168 has 336 divisors, whose sum is σ = 815683814400. Its totient is φ = 71458329600.

The previous prime is 243678207121. The next prime is 243678207197. The reversal of 243678207168 is 861702876342.

243678207168 is a `hidden beast` number, since 2 + 436 + 7 + 82 + 0 + 71 + 68 = 666.

243678207168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243678207168² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 5280258 + ... + 5326206.

It is an arithmetic number, because the mean of its divisors is an integer number (2427630400).

Almost surely, 2^243678207168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243678207168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407841907200).

243678207168 is an abundant number, since it is smaller than the sum of its proper divisors (572005607232).

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

243678207168 is a wasteful number, since it uses less digits than its factorization.

243678207168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46018 (or 45996 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 243678207168 in words is "two hundred forty-three billion, six hundred seventy-eight million, two hundred seven thousand, one hundred sixty-eight".