13428366871 has 4 divisors (see below), whose sum is σ = 13432332600. Its totient is φ = 13424401144.

The previous prime is 13428366773. The next prime is 13428366893. The reversal of 13428366871 is 17866382431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17866382431 = 45361 ⋅393871.

It is a cyclic number.

It is not a de Polignac number, because 13428366871 - 2²⁵ = 13394812439 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 (13428367871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1977781 + ... + 1984558.

It is an arithmetic number, because the mean of its divisors is an integer number (3358083150).

Almost surely, 2^13428366871 is an apocalyptic number.

13428366871 is a deficient number, since it is larger than the sum of its proper divisors (3965729).

13428366871 is an equidigital number, since it uses as much as digits as its factorization.

13428366871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965728.

The product of its digits is 1161216, while the sum is 49.

The spelling of 13428366871 in words is "thirteen billion, four hundred twenty-eight million, three hundred sixty-six thousand, eight hundred seventy-one".