243545200000 has 96 divisors (see below), whose sum is σ = 606446809920. Its totient is φ = 97417920000.

The previous prime is 243545199979. The next prime is 243545200013. The reversal of 243545200000 is 2545342.

243545200000 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-3 number, since 3×243545200000³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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, 95569 + ... + 704431.

It is an arithmetic number, because the mean of its divisors is an integer number (6317154270).

Almost surely, 2^243545200000 is an apocalyptic number.

243545200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243545200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303223404960).

243545200000 is an abundant number, since it is smaller than the sum of its proper divisors (362901609920).

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

243545200000 is an frugal number, since it uses more digits than its factorization.

243545200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608902 (or 608870 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 243545200000 its reverse (2545342), we get a palindrome (243547745342).

The spelling of 243545200000 in words is "two hundred forty-three billion, five hundred forty-five million, two hundred thousand".