13876746779 has 4 divisors (see below), whose sum is σ = 15859139184. Its totient is φ = 11894354376.

The previous prime is 13876746773. The next prime is 13876746781. The reversal of 13876746779 is 97764767831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97764767831 = 71 ⋅1376968561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13876746779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13876746773) 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 3 ways as a sum of consecutive naturals, for example, 991196192 + ... + 991196205.

It is an arithmetic number, because the mean of its divisors is an integer number (3964784796).

Almost surely, 2^13876746779 is an apocalyptic number.

13876746779 is a deficient number, since it is larger than the sum of its proper divisors (1982392405).

13876746779 is an equidigital number, since it uses as much as digits as its factorization.

13876746779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982392404.

The product of its digits is 74680704, while the sum is 65.

The spelling of 13876746779 in words is "thirteen billion, eight hundred seventy-six million, seven hundred forty-six thousand, seven hundred seventy-nine".