243044024545 has 16 divisors (see below), whose sum is σ = 333326181888. Its totient is φ = 166654428480.

The previous prime is 243044024453. The next prime is 243044024609. The reversal of 243044024545 is 545420440342.

It is not a de Polignac number, because 243044024545 - 2⁹ = 243044024033 is a prime.

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, 1884312 + ... + 2009158.

It is an arithmetic number, because the mean of its divisors is an integer number (20832886368).

Almost surely, 2^243044024545 is an apocalyptic number.

It is an amenable number.

243044024545 is a deficient number, since it is larger than the sum of its proper divisors (90282157343).

243044024545 is a wasteful number, since it uses less digits than its factorization.

243044024545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180480.

The product of its (nonzero) digits is 307200, while the sum is 37.

Adding to 243044024545 its reverse (545420440342), we get a palindrome (788464464887).

The spelling of 243044024545 in words is "two hundred forty-three billion, forty-four million, twenty-four thousand, five hundred forty-five".