242943861720 has 64 divisors (see below), whose sum is σ = 832950385920. Its totient is φ = 55530025344.

The previous prime is 242943861709. The next prime is 242943861739. The reversal of 242943861720 is 27168349242.

It is a self number, because there is not a number n which added to its sum of digits gives 242943861720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144608602 + ... + 144610281.

It is an arithmetic number, because the mean of its divisors is an integer number (13014849780).

Almost surely, 2^242943861720 is an apocalyptic number.

242943861720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242943861720 is an abundant number, since it is smaller than the sum of its proper divisors (590006524200).

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

242943861720 is a wasteful number, since it uses less digits than its factorization.

242943861720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289218904 (or 289218900 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 242943861720 in words is "two hundred forty-two billion, nine hundred forty-three million, eight hundred sixty-one thousand, seven hundred twenty".