243603634254 has 32 divisors (see below), whose sum is σ = 492740962560. Its totient is φ = 80279149632.

The previous prime is 243603634247. The next prime is 243603634273. The reversal of 243603634254 is 452436306342.

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, 5404599 + ... + 5449485.

It is an arithmetic number, because the mean of its divisors is an integer number (15398155080).

Almost surely, 2^243603634254 is an apocalyptic number.

243603634254 is an abundant number, since it is smaller than the sum of its proper divisors (249137328306).

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

243603634254 is a wasteful number, since it uses less digits than its factorization.

243603634254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55144.

The product of its (nonzero) digits is 1244160, while the sum is 42.

The spelling of 243603634254 in words is "two hundred forty-three billion, six hundred three million, six hundred thirty-four thousand, two hundred fifty-four".