243383978803168 has 48 divisors (see below), whose sum is σ = 557946291057120. Its totient is φ = 102339354963456.

The previous prime is 243383978803139. The next prime is 243383978803213. The reversal of 243383978803168 is 861308879383342.

It is a super-2 number, since 2×243383978803168² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243383978803168.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10250324163 + ... + 10250347906.

It is an arithmetic number, because the mean of its divisors is an integer number (11623881063690).

Almost surely, 2^{243383978803168} is an apocalyptic number.

243383978803168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

243383978803168 is an abundant number, since it is smaller than the sum of its proper divisors (314562312253952).

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

243383978803168 is a wasteful number, since it uses less digits than its factorization.

243383978803168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20500672139 (or 20500672131 counting only the distinct ones).

The product of its (nonzero) digits is 1003290624, while the sum is 73.

The spelling of 243383978803168 in words is "two hundred forty-three trillion, three hundred eighty-three billion, nine hundred seventy-eight million, eight hundred three thousand, one hundred sixty-eight".