243286805240988 has 48 divisors (see below), whose sum is σ = 568898584611840. Its totient is φ = 80920034270784.

The previous prime is 243286805240971. The next prime is 243286805241017. The reversal of 243286805240988 is 889042508682342.

It is a super-2 number, since 2×243286805240988² (a number of 30 digits) contains 22 as substring.

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, 30516498 + ... + 37654086.

It is an arithmetic number, because the mean of its divisors is an integer number (11852053846080).

Almost surely, 2^{243286805240988} is an apocalyptic number.

It is an amenable number.

243286805240988 is an abundant number, since it is smaller than the sum of its proper divisors (325611779370852).

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

243286805240988 is a wasteful number, since it uses less digits than its factorization.

243286805240988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143746 (or 7143744 counting only the distinct ones).

The product of its (nonzero) digits is 424673280, while the sum is 69.

The spelling of 243286805240988 in words is "two hundred forty-three trillion, two hundred eighty-six billion, eight hundred five million, two hundred forty thousand, nine hundred eighty-eight".