243554255535012 has 48 divisors (see below), whose sum is σ = 593009844991872. Its totient is φ = 77653908921600.

The previous prime is 243554255535007. The next prime is 243554255535271. The reversal of 243554255535012 is 210535552455342.

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, 14081262 + ... + 26179962.

It is an arithmetic number, because the mean of its divisors is an integer number (12354371770664).

Almost surely, 2^{243554255535012} is an apocalyptic number.

It is an amenable number.

243554255535012 is an abundant number, since it is smaller than the sum of its proper divisors (349455589456860).

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

243554255535012 is a wasteful number, since it uses less digits than its factorization.

243554255535012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12171668 (or 12171666 counting only the distinct ones).

The product of its (nonzero) digits is 18000000, while the sum is 51.

The spelling of 243554255535012 in words is "two hundred forty-three trillion, five hundred fifty-four billion, two hundred fifty-five million, five hundred thirty-five thousand, twelve".