23004581489 has 2 divisors, whose sum is σ = 23004581490. Its totient is φ = 23004581488.

The previous prime is 23004581477. The next prime is 23004581491. The reversal of 23004581489 is 98418540032.

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., 20860891489 + 2143690000 = 144433^2 + 46300^2 .

It is a cyclic number.

It is not a de Polignac number, because 23004581489 - 2¹⁶ = 23004515953 is a prime.

Together with 23004581491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23004581989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11502290744 + 11502290745.

It is an arithmetic number, because the mean of its divisors is an integer number (11502290745).

Almost surely, 2^23004581489 is an apocalyptic number.

It is an amenable number.

23004581489 is a deficient number, since it is larger than the sum of its proper divisors (1).

23004581489 is an equidigital number, since it uses as much as digits as its factorization.

23004581489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 23004581489 in words is "twenty-three billion, four million, five hundred eighty-one thousand, four hundred eighty-nine".