243111274647672 has 64 divisors (see below), whose sum is σ = 634214347534080. Its totient is φ = 77512392564992.

The previous prime is 243111274647587. The next prime is 243111274647719. The reversal of 243111274647672 is 276746472111342.

It is a happy number.

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, 28205083 + ... + 35801525.

It is an arithmetic number, because the mean of its divisors is an integer number (9909599180220).

Almost surely, 2^{243111274647672} is an apocalyptic number.

It is an amenable number.

243111274647672 is an abundant number, since it is smaller than the sum of its proper divisors (391103072886408).

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

243111274647672 is a wasteful number, since it uses less digits than its factorization.

243111274647672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7654452 (or 7654448 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 57.

The spelling of 243111274647672 in words is "two hundred forty-three trillion, one hundred eleven billion, two hundred seventy-four million, six hundred forty-seven thousand, six hundred seventy-two".