99128648029 has 2 divisors, whose sum is σ = 99128648030. Its totient is φ = 99128648028.

The previous prime is 99128647927. The next prime is 99128648053. The reversal of 99128648029 is 92084682199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74425296100 + 24703351929 = 272810^2 + 157173^2 .

It is a cyclic number.

It is not a de Polignac number, because 99128648029 - 2¹⁷ = 99128516957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99128648089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49564324014 + 49564324015.

It is an arithmetic number, because the mean of its divisors is an integer number (49564324015).

Almost surely, 2^99128648029 is an apocalyptic number.

It is an amenable number.

99128648029 is a deficient number, since it is larger than the sum of its proper divisors (1).

99128648029 is an equidigital number, since it uses as much as digits as its factorization.

99128648029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 99128648029 in words is "ninety-nine billion, one hundred twenty-eight million, six hundred forty-eight thousand, twenty-nine".