99673239089 has 2 divisors, whose sum is σ = 99673239090. Its totient is φ = 99673239088.

The previous prime is 99673239073. The next prime is 99673239091. The reversal of 99673239089 is 98093237699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85084222864 + 14589016225 = 291692^2 + 120785^2 .

It is a cyclic number.

It is not a de Polignac number, because 99673239089 - 2⁴ = 99673239073 is a prime.

It is a Sophie Germain prime.

Together with 99673239091, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (99673239989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49836619544 + 49836619545.

It is an arithmetic number, because the mean of its divisors is an integer number (49836619545).

Almost surely, 2^99673239089 is an apocalyptic number.

It is an amenable number.

99673239089 is a deficient number, since it is larger than the sum of its proper divisors (1).

99673239089 is an equidigital number, since it uses as much as digits as its factorization.

99673239089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39680928, while the sum is 65.

The spelling of 99673239089 in words is "ninety-nine billion, six hundred seventy-three million, two hundred thirty-nine thousand, eighty-nine".