243389808245280 has 384 divisors, whose sum is σ = 825297082606080. Its totient is φ = 60069171363840.

The previous prime is 243389808245267. The next prime is 243389808245327. The reversal of 243389808245280 is 82542808983342.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1994463306 + ... + 1994585334.

It is an arithmetic number, because the mean of its divisors is an integer number (2149211152620).

Almost surely, 2^{243389808245280} is an apocalyptic number.

243389808245280 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 243389808245280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412648541303040).

243389808245280 is an abundant number, since it is smaller than the sum of its proper divisors (581907274360800).

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

243389808245280 is a wasteful number, since it uses less digits than its factorization.

243389808245280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126132 (or 126124 counting only the distinct ones).

The product of its (nonzero) digits is 212336640, while the sum is 66.

The spelling of 243389808245280 in words is "two hundred forty-three trillion, three hundred eighty-nine billion, eight hundred eight million, two hundred forty-five thousand, two hundred eighty".