13078723130779 has 4 divisors (see below), whose sum is σ = 13200954188184. Its totient is φ = 12956492073376.

The previous prime is 13078723130741. The next prime is 13078723130873. The reversal of 13078723130779 is 97703132787031.

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-13078723130779 is a prime.

It is a super-3 number, since 3×13078723130779³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13078723130479) 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, 61115528542 + ... + 61115528755.

It is an arithmetic number, because the mean of its divisors is an integer number (3300238547046).

Almost surely, 2^{13078723130779} is an apocalyptic number.

13078723130779 is a deficient number, since it is larger than the sum of its proper divisors (122231057405).

13078723130779 is a wasteful number, since it uses less digits than its factorization.

13078723130779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122231057404.

The product of its (nonzero) digits is 9335088, while the sum is 58.

The spelling of 13078723130779 in words is "thirteen trillion, seventy-eight billion, seven hundred twenty-three million, one hundred thirty thousand, seven hundred seventy-nine".