34239505879 has 4 divisors (see below), whose sum is σ = 34318948320. Its totient is φ = 34160063440.

The previous prime is 34239505873. The next prime is 34239505957. The reversal of 34239505879 is 97850593243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34239505879 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 (34239505873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39720574 + ... + 39721435.

It is an arithmetic number, because the mean of its divisors is an integer number (8579737080).

Almost surely, 2^34239505879 is an apocalyptic number.

34239505879 is a deficient number, since it is larger than the sum of its proper divisors (79442441).

34239505879 is an equidigital number, since it uses as much as digits as its factorization.

34239505879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79442440.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 34239505879 in words is "thirty-four billion, two hundred thirty-nine million, five hundred five thousand, eight hundred seventy-nine".