23489000189 has 2 divisors, whose sum is σ = 23489000190. Its totient is φ = 23489000188.

The previous prime is 23489000153. The next prime is 23489000221. The reversal of 23489000189 is 98100098432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18430234564 + 5058765625 = 135758^2 + 71125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23489000189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23489003189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11744500094 + 11744500095.

It is an arithmetic number, because the mean of its divisors is an integer number (11744500095).

Almost surely, 2^23489000189 is an apocalyptic number.

It is an amenable number.

23489000189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23489000189 is an equidigital number, since it uses as much as digits as its factorization.

23489000189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 23489000189 in words is "twenty-three billion, four hundred eighty-nine million, one hundred eighty-nine", and thus it is an aban number.