243209880000 has 1260 divisors, whose sum is σ = 973107787080. Its totient is φ = 57853440000.

The previous prime is 243209879989. The next prime is 243209880041. The reversal of 243209880000 is 88902342.

It is a super-2 number, since 2×243209880000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 6573239982 + ... + 6573240018.

Almost surely, 2^243209880000 is an apocalyptic number.

243209880000 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 243209880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486553893540).

243209880000 is an abundant number, since it is smaller than the sum of its proper divisors (729897907080).

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

243209880000 is a wasteful number, since it uses less digits than its factorization.

243209880000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 243209880000 in words is "two hundred forty-three billion, two hundred nine million, eight hundred eighty thousand".