243078420168 has 48 divisors (see below), whose sum is σ = 658487094720. Its totient is φ = 81007714656.

The previous prime is 243078420163. The next prime is 243078420187. The reversal of 243078420168 is 861024870342.

It is a happy number.

243078420168 is a `hidden beast` number, since 2 + 4 + 307 + 84 + 201 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (243078420163) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 63196 + ... + 700107.

It is an arithmetic number, because the mean of its divisors is an integer number (13718481140).

Almost surely, 2^243078420168 is an apocalyptic number.

It is an amenable number.

243078420168 is an abundant number, since it is smaller than the sum of its proper divisors (415408674552).

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

243078420168 is a wasteful number, since it uses less digits than its factorization.

243078420168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767738 (or 767731 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 243078420168 in words is "two hundred forty-three billion, seventy-eight million, four hundred twenty thousand, one hundred sixty-eight".