23289812089 has 2 divisors, whose sum is σ = 23289812090. Its totient is φ = 23289812088.

The previous prime is 23289812087. The next prime is 23289812111. The reversal of 23289812089 is 98021898232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20076622864 + 3213189225 = 141692^2 + 56685^2 .

It is a cyclic number.

It is not a de Polignac number, because 23289812089 - 2¹ = 23289812087 is a prime.

Together with 23289812087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23289812083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11644906044 + 11644906045.

It is an arithmetic number, because the mean of its divisors is an integer number (11644906045).

Almost surely, 2^23289812089 is an apocalyptic number.

It is an amenable number.

23289812089 is a deficient number, since it is larger than the sum of its proper divisors (1).

23289812089 is an equidigital number, since it uses as much as digits as its factorization.

23289812089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 23289812089 in words is "twenty-three billion, two hundred eighty-nine million, eight hundred twelve thousand, eighty-nine".