243430553454 has 64 divisors (see below), whose sum is σ = 536125962240. Its totient is φ = 73074881120.

The previous prime is 243430553417. The next prime is 243430553489. The reversal of 243430553454 is 454355034342.

243430553454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3067909 + ... + 3146255.

It is an arithmetic number, because the mean of its divisors is an integer number (8376968160).

Almost surely, 2^243430553454 is an apocalyptic number.

243430553454 is an abundant number, since it is smaller than the sum of its proper divisors (292695408786).

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

243430553454 is a wasteful number, since it uses less digits than its factorization.

243430553454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78805.

The product of its (nonzero) digits is 1728000, while the sum is 42.

Adding to 243430553454 its reverse (454355034342), we get a palindrome (697785587796).

The spelling of 243430553454 in words is "two hundred forty-three billion, four hundred thirty million, five hundred fifty-three thousand, four hundred fifty-four".