13079186991 has 64 divisors (see below), whose sum is σ = 21263872000. Its totient is φ = 7944000480.

The previous prime is 13079186957. The next prime is 13079186999. The reversal of 13079186991 is 19968197031.

It is a happy number.

13079186991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13079186991 - 2⁶ = 13079186927 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 (13079186999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4684806 + ... + 4687596.

It is an arithmetic number, because the mean of its divisors is an integer number (332248000).

Almost surely, 2^13079186991 is an apocalyptic number.

13079186991 is a deficient number, since it is larger than the sum of its proper divisors (8184685009).

13079186991 is an equidigital number, since it uses as much as digits as its factorization.

13079186991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2886 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 54.

The spelling of 13079186991 in words is "thirteen billion, seventy-nine million, one hundred eighty-six thousand, nine hundred ninety-one".