561172283889 has 8 divisors (see below), whose sum is σ = 855119670720. Its totient is φ = 320669876496.

The previous prime is 561172283863. The next prime is 561172283923. The reversal of 561172283889 is 988382271165.

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

It is not a de Polignac number, because 561172283889 - 2¹⁶ = 561172218353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561172285889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13361244834 + ... + 13361244875.

It is an arithmetic number, because the mean of its divisors is an integer number (106889958840).

Almost surely, 2^561172283889 is an apocalyptic number.

It is an amenable number.

561172283889 is a deficient number, since it is larger than the sum of its proper divisors (293947386831).

561172283889 is a wasteful number, since it uses less digits than its factorization.

561172283889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26722489719.

The product of its digits is 11612160, while the sum is 60.

The spelling of 561172283889 in words is "five hundred sixty-one billion, one hundred seventy-two million, two hundred eighty-three thousand, eight hundred eighty-nine".