12339561117779 has 8 divisors (see below), whose sum is σ = 14102404929888. Its totient is φ = 10576729647360.

The previous prime is 12339561117773. The next prime is 12339561117817. The reversal of 12339561117779 is 97771116593321.

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-12339561117779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12339561117773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833342 + ... + 5037219.

It is an arithmetic number, because the mean of its divisors is an integer number (1762800616236).

Almost surely, 2^{12339561117779} is an apocalyptic number.

12339561117779 is a deficient number, since it is larger than the sum of its proper divisors (1762843812109).

12339561117779 is an equidigital number, since it uses as much as digits as its factorization.

12339561117779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170845.

The product of its digits is 15002820, while the sum is 62.

The spelling of 12339561117779 in words is "twelve trillion, three hundred thirty-nine billion, five hundred sixty-one million, one hundred seventeen thousand, seven hundred seventy-nine".