239393712109 has 4 divisors (see below), whose sum is σ = 240395359680. Its totient is φ = 238392064540.

The previous prime is 239393712043. The next prime is 239393712119. The reversal of 239393712109 is 901217393932.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 239393712109 - 2¹⁵ = 239393679341 is a prime.

It is a super-3 number, since 3×239393712109³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239393712119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500823427 + ... + 500823904.

It is an arithmetic number, because the mean of its divisors is an integer number (60098839920).

Almost surely, 2^239393712109 is an apocalyptic number.

It is an amenable number.

239393712109 is a deficient number, since it is larger than the sum of its proper divisors (1001647571).

239393712109 is a wasteful number, since it uses less digits than its factorization.

239393712109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001647570.

The product of its (nonzero) digits is 551124, while the sum is 49.

The spelling of 239393712109 in words is "two hundred thirty-nine billion, three hundred ninety-three million, seven hundred twelve thousand, one hundred nine".