56789008189 has 4 divisors (see below), whose sum is σ = 56792225500. Its totient is φ = 56785790880.

The previous prime is 56789008163. The next prime is 56789008193. The reversal of 56789008189 is 98180098765.

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 2355452089 + 54433556100 = 48533^2 + 233310^2 .

It is a cyclic number.

It is not a de Polignac number, because 56789008189 - 2²¹ = 56786911037 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 (56789008489) 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, 1582032 + ... + 1617529.

It is an arithmetic number, because the mean of its divisors is an integer number (14198056375).

Almost surely, 2^56789008189 is an apocalyptic number.

It is an amenable number.

56789008189 is a deficient number, since it is larger than the sum of its proper divisors (3217311).

56789008189 is a wasteful number, since it uses less digits than its factorization.

56789008189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217310.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The spelling of 56789008189 in words is "fifty-six billion, seven hundred eighty-nine million, eight thousand, one hundred eighty-nine".