243504323445 has 16 divisors (see below), whose sum is σ = 389627802432. Its totient is φ = 129862010880.

The previous prime is 243504323423. The next prime is 243504323467. The reversal of 243504323445 is 544323405342.

It is an interprime number because it is at equal distance from previous prime (243504323423) and next prime (243504323467).

It is not a de Polignac number, because 243504323445 - 2¹² = 243504319349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139471 + ... + 711660.

It is an arithmetic number, because the mean of its divisors is an integer number (24351737652).

Almost surely, 2^243504323445 is an apocalyptic number.

It is an amenable number.

243504323445 is a deficient number, since it is larger than the sum of its proper divisors (146123478987).

243504323445 is a wasteful number, since it uses less digits than its factorization.

243504323445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870212.

The product of its (nonzero) digits is 691200, while the sum is 39.

Adding to 243504323445 its reverse (544323405342), we get a palindrome (787827728787).

The spelling of 243504323445 in words is "two hundred forty-three billion, five hundred four million, three hundred twenty-three thousand, four hundred forty-five".