99124855289 has 2 divisors, whose sum is σ = 99124855290. Its totient is φ = 99124855288.

The previous prime is 99124855273. The next prime is 99124855321. The reversal of 99124855289 is 98255842199.

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., 50621400064 + 48503455225 = 224992^2 + 220235^2 .

It is an emirp because it is prime and its reverse (98255842199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99124855289 - 2⁴ = 99124855273 is a prime.

It is not a weakly prime, because it can be changed into another prime (99124855189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49562427644 + 49562427645.

It is an arithmetic number, because the mean of its divisors is an integer number (49562427645).

Almost surely, 2^99124855289 is an apocalyptic number.

It is an amenable number.

99124855289 is a deficient number, since it is larger than the sum of its proper divisors (1).

99124855289 is an equidigital number, since it uses as much as digits as its factorization.

99124855289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18662400, while the sum is 62.

The spelling of 99124855289 in words is "ninety-nine billion, one hundred twenty-four million, eight hundred fifty-five thousand, two hundred eighty-nine".