239443423279813 has 8 divisors (see below), whose sum is σ = 248040787740416. Its totient is φ = 230900645260800.

The previous prime is 239443423279807. The next prime is 239443423279913. The reversal of 239443423279813 is 318972324344932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239443423279813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239443423279013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13646601468 + ... + 13646619013.

It is an arithmetic number, because the mean of its divisors is an integer number (31005098467552).

Almost surely, 2^{239443423279813} is an apocalyptic number.

It is an amenable number.

239443423279813 is a deficient number, since it is larger than the sum of its proper divisors (8597364460603).

239443423279813 is a wasteful number, since it uses less digits than its factorization.

239443423279813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27293220795.

The product of its digits is 188116992, while the sum is 64.

The spelling of 239443423279813 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 thirteen".