13228386711786 has 24 divisors (see below), whose sum is σ = 28674004197540. Its totient is φ = 4407539213376.

The previous prime is 13228386711781. The next prime is 13228386711809. The reversal of 13228386711786 is 68711768382231.

It is a happy number.

13228386711786 is a `hidden beast` number, since 1 + 322 + 83 + 8 + 67 + 1 + 178 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13201631894025 + 26754817761 = 3633405^2 + 163569^2 .

It is not an unprimeable number, because it can be changed into a prime (13228386711781) 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 11 ways as a sum of consecutive naturals, for example, 160209571 + ... + 160292118.

Almost surely, 2^{13228386711786} is an apocalyptic number.

13228386711786 is an abundant number, since it is smaller than the sum of its proper divisors (15445617485754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13228386711786 is a wasteful number, since it uses less digits than its factorization.

13228386711786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320503990 (or 320503987 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 63.

The spelling of 13228386711786 in words is "thirteen trillion, two hundred twenty-eight billion, three hundred eighty-six million, seven hundred eleven thousand, seven hundred eighty-six".