28889773289089 has 2 divisors, whose sum is σ = 28889773289090. Its totient is φ = 28889773289088.

The previous prime is 28889773289081. The next prime is 28889773289101. The reversal of 28889773289089 is 98098237798882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15836062097025 + 13053711192064 = 3979455^2 + 3612992^2 .

It is a cyclic number.

It is not a de Polignac number, because 28889773289089 - 2³ = 28889773289081 is a prime.

It is not a weakly prime, because it can be changed into another prime (28889773289081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14444886644544 + 14444886644545.

It is an arithmetic number, because the mean of its divisors is an integer number (14444886644545).

Almost surely, 2^{28889773289089} is an apocalyptic number.

It is an amenable number.

28889773289089 is a deficient number, since it is larger than the sum of its proper divisors (1).

28889773289089 is an equidigital number, since it uses as much as digits as its factorization.

28889773289089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14046068736, while the sum is 88.

The spelling of 28889773289089 in words is "twenty-eight trillion, eight hundred eighty-nine billion, seven hundred seventy-three million, two hundred eighty-nine thousand, eighty-nine".