243944119520 has 48 divisors (see below), whose sum is σ = 576350238240. Its totient is φ = 97572186624.

The previous prime is 243944119511. The next prime is 243944119543. The reversal of 243944119520 is 25911449342.

243944119520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4045109 + ... + 4104971.

It is an arithmetic number, because the mean of its divisors is an integer number (12007296630).

Almost surely, 2^243944119520 is an apocalyptic number.

243944119520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243944119520 is an abundant number, since it is smaller than the sum of its proper divisors (332406118720).

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

243944119520 is a wasteful number, since it uses less digits than its factorization.

243944119520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85347 (or 85339 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 243944119520 in words is "two hundred forty-three billion, nine hundred forty-four million, one hundred nineteen thousand, five hundred twenty".