243552109892956 has 24 divisors (see below), whose sum is σ = 426623840618976. Its totient is φ = 121659587200320.

The previous prime is 243552109892947. The next prime is 243552109892981. The reversal of 243552109892956 is 659298901255342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338511310 + ... + 339230026.

It is an arithmetic number, because the mean of its divisors is an integer number (17775993359124).

Almost surely, 2^{243552109892956} is an apocalyptic number.

It is an amenable number.

243552109892956 is a deficient number, since it is larger than the sum of its proper divisors (183071730726020).

243552109892956 is a wasteful number, since it uses less digits than its factorization.

243552109892956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799629 (or 799627 counting only the distinct ones).

The product of its (nonzero) digits is 419904000, while the sum is 70.

The spelling of 243552109892956 in words is "two hundred forty-three trillion, five hundred fifty-two billion, one hundred nine million, eight hundred ninety-two thousand, nine hundred fifty-six".