243442338685 has 64 divisors (see below), whose sum is σ = 365291265024. Its totient is φ = 151646976000.

The previous prime is 243442338683. The next prime is 243442338731. The reversal of 243442338685 is 586833244342.

It is not a de Polignac number, because 243442338685 - 2¹ = 243442338683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243442338683) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7658625 + ... + 7690345.

It is an arithmetic number, because the mean of its divisors is an integer number (5707676016).

Almost surely, 2^243442338685 is an apocalyptic number.

It is an amenable number.

243442338685 is a deficient number, since it is larger than the sum of its proper divisors (121848926339).

243442338685 is a wasteful number, since it uses less digits than its factorization.

243442338685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32014.

The product of its digits is 13271040, while the sum is 52.

The spelling of 243442338685 in words is "two hundred forty-three billion, four hundred forty-two million, three hundred thirty-eight thousand, six hundred eighty-five".