243162139968 has 140 divisors (see below), whose sum is σ = 786337012032. Its totient is φ = 73685479680.

The previous prime is 243162139943. The next prime is 243162139999. The reversal of 243162139968 is 869931261342.

243162139968 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 621 + 3 + 9 + 9 + 6 + 8 = 666.

243162139968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 2075080 + ... + 2189127.

Almost surely, 2^243162139968 is an apocalyptic number.

It is an amenable number.

243162139968 is an abundant number, since it is smaller than the sum of its proper divisors (543174872064).

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

243162139968 is a wasteful number, since it uses less digits than its factorization.

243162139968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264242 (or 4264223 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The spelling of 243162139968 in words is "two hundred forty-three billion, one hundred sixty-two million, one hundred thirty-nine thousand, nine hundred sixty-eight".