11471679456889 has 4 divisors (see below), whose sum is σ = 11475689134500. Its totient is φ = 11467669779280.

The previous prime is 11471679456859. The next prime is 11471679456901. The reversal of 11471679456889 is 98865497617411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4035739477225 + 7435939979664 = 2008915^2 + 2726892^2 .

It is a cyclic number.

It is not a de Polignac number, because 11471679456889 - 2¹¹ = 11471679454841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11471679456859) 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, 2004834514 + ... + 2004840235.

It is an arithmetic number, because the mean of its divisors is an integer number (2868922283625).

Almost surely, 2^{11471679456889} is an apocalyptic number.

It is an amenable number.

11471679456889 is a deficient number, since it is larger than the sum of its proper divisors (4009677611).

11471679456889 is an equidigital number, since it uses as much as digits as its factorization.

11471679456889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009677610.

The product of its digits is 731566080, while the sum is 76.

The spelling of 11471679456889 in words is "eleven trillion, four hundred seventy-one billion, six hundred seventy-nine million, four hundred fifty-six thousand, eight hundred eighty-nine".