239128309079 has 8 divisors (see below), whose sum is σ = 261385875072. Its totient is φ = 216957181240.

The previous prime is 239128309073. The next prime is 239128309087. The reversal of 239128309079 is 970903821932.

It is a happy number.

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-239128309079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 239128309079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239128309073) 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, 21603749 + ... + 21614814.

It is an arithmetic number, because the mean of its divisors is an integer number (32673234384).

Almost surely, 2^239128309079 is an apocalyptic number.

239128309079 is a deficient number, since it is larger than the sum of its proper divisors (22257565993).

239128309079 is a wasteful number, since it uses less digits than its factorization.

239128309079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43219077.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 239128309079 in words is "two hundred thirty-nine billion, one hundred twenty-eight million, three hundred nine thousand, seventy-nine".