2189534561111 has 8 divisors (see below), whose sum is σ = 2211251528304. Its totient is φ = 2167818347200.

The previous prime is 2189534561051. The next prime is 2189534561117. The reversal of 2189534561111 is 1111654359812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2189534561111 - 2³⁰ = 2188460819287 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 (2189534561117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7011836 + ... + 7317438.

It is an arithmetic number, because the mean of its divisors is an integer number (276406441038).

Almost surely, 2^{2189534561111} is an apocalyptic number.

2189534561111 is a deficient number, since it is larger than the sum of its proper divisors (21716967193).

2189534561111 is a wasteful number, since it uses less digits than its factorization.

2189534561111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376641.

The product of its digits is 259200, while the sum is 47.

The spelling of 2189534561111 in words is "two trillion, one hundred eighty-nine billion, five hundred thirty-four million, five hundred sixty-one thousand, one hundred eleven".