12344556779 has 8 divisors (see below), whose sum is σ = 12834447360. Its totient is φ = 11860396200.

The previous prime is 12344556743. The next prime is 12344556853. The reversal of 12344556779 is 97765544321.

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-12344556779 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12344556779.

It is not an unprimeable number, because it can be changed into a prime (12344553779) 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, 1428107 + ... + 1436724.

It is an arithmetic number, because the mean of its divisors is an integer number (1604305920).

Almost surely, 2^12344556779 is an apocalyptic number.

12344556779 is a deficient number, since it is larger than the sum of its proper divisors (489890581).

12344556779 is a wasteful number, since it uses less digits than its factorization.

12344556779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865001.

The product of its digits is 6350400, while the sum is 53.

The spelling of 12344556779 in words is "twelve billion, three hundred forty-four million, five hundred fifty-six thousand, seven hundred seventy-nine".