243667272868 has 12 divisors (see below), whose sum is σ = 426421411612. Its totient is φ = 121832583840.

The previous prime is 243667272839. The next prime is 243667272907. The reversal of 243667272868 is 868272766342.

243667272868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 188944963684 + 54722309184 = 434678^2 + 233928^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510298 + ... + 864718.

Almost surely, 2^243667272868 is an apocalyptic number.

It is an amenable number.

243667272868 is a deficient number, since it is larger than the sum of its proper divisors (182754138744).

243667272868 is a wasteful number, since it uses less digits than its factorization.

243667272868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526302 (or 526300 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 61.

The spelling of 243667272868 in words is "two hundred forty-three billion, six hundred sixty-seven million, two hundred seventy-two thousand, eight hundred sixty-eight".