243115222944 has 96 divisors (see below), whose sum is σ = 713174051520. Its totient is φ = 71874406400.

The previous prime is 243115222943. The next prime is 243115222951. The reversal of 243115222944 is 449222511342.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×243115222944² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243115222943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2764299 + ... + 2850890.

It is an arithmetic number, because the mean of its divisors is an integer number (7428896370).

Almost surely, 2^243115222944 is an apocalyptic number.

243115222944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243115222944 is an abundant number, since it is smaller than the sum of its proper divisors (470058828576).

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

243115222944 is a wasteful number, since it uses less digits than its factorization.

243115222944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615254 (or 5615246 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The spelling of 243115222944 in words is "two hundred forty-three billion, one hundred fifteen million, two hundred twenty-two thousand, nine hundred forty-four".