5561491830189 has 4 divisors (see below), whose sum is σ = 7415322440256. Its totient is φ = 3707661220124.

The previous prime is 5561491830157. The next prime is 5561491830203. The reversal of 5561491830189 is 9810381941655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5561491830189 - 2⁵ = 5561491830157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561491837189) 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, 926915305029 + ... + 926915305034.

It is an arithmetic number, because the mean of its divisors is an integer number (1853830610064).

Almost surely, 2^{5561491830189} is an apocalyptic number.

It is an amenable number.

5561491830189 is a deficient number, since it is larger than the sum of its proper divisors (1853830610067).

5561491830189 is a wasteful number, since it uses less digits than its factorization.

5561491830189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853830610066.

The product of its (nonzero) digits is 9331200, while the sum is 60.

The spelling of 5561491830189 in words is "five trillion, five hundred sixty-one billion, four hundred ninety-one million, eight hundred thirty thousand, one hundred eighty-nine".