239443423279812 has 36 divisors (see below), whose sum is σ = 613550994057820. Its totient is φ = 78721125460992.

The previous prime is 239443423279807. The next prime is 239443423279913. The reversal of 239443423279812 is 218972324344932.

It is a happy number.

239443423279812 is a `hidden beast` number, since 2 + 3 + 9 + 4 + 4 + 342 + 3 + 279 + 8 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 108422571963456 + 131020851316356 = 10412616^2 + 11446434^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 239443423279812.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45556204237 + ... + 45556209492.

Almost surely, 2^{239443423279812} is an apocalyptic number.

It is an amenable number.

239443423279812 is an abundant number, since it is smaller than the sum of its proper divisors (374107570778008).

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

239443423279812 is a wasteful number, since it uses less digits than its factorization.

239443423279812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91112413812 (or 91112413807 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 63.

The spelling of 239443423279812 in words is "two hundred thirty-nine trillion, four hundred forty-three billion, four hundred twenty-three million, two hundred seventy-nine thousand, eight hundred twelve".