13228162791 has 16 divisors (see below), whose sum is σ = 18991584000. Its totient is φ = 8159343488.

The previous prime is 13228162771. The next prime is 13228162807. The reversal of 13228162791 is 19726182231.

It is a cyclic number.

It is not a de Polignac number, because 13228162791 - 2¹⁵ = 13228130023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228162711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2195091 + ... + 2201108.

It is an arithmetic number, because the mean of its divisors is an integer number (1186974000).

Almost surely, 2^13228162791 is an apocalyptic number.

13228162791 is a deficient number, since it is larger than the sum of its proper divisors (5763421209).

13228162791 is a wasteful number, since it uses less digits than its factorization.

13228162791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396278.

The product of its digits is 72576, while the sum is 42.

The spelling of 13228162791 in words is "thirteen billion, two hundred twenty-eight million, one hundred sixty-two thousand, seven hundred ninety-one".