99994868089 has 2 divisors, whose sum is σ = 99994868090. Its totient is φ = 99994868088.

The previous prime is 99994868047. The next prime is 99994868119. The reversal of 99994868089 is 98086849999.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87924110400 + 12070757689 = 296520^2 + 109867^2 .

It is a cyclic number.

It is not a de Polignac number, because 99994868089 - 2⁷ = 99994867961 is a prime.

It is a weakly prime.

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, 49997434044 + 49997434045.

It is an arithmetic number, because the mean of its divisors is an integer number (49997434045).

Almost surely, 2^99994868089 is an apocalyptic number.

It is an amenable number.

99994868089 is a deficient number, since it is larger than the sum of its proper divisors (1).

99994868089 is an equidigital number, since it uses as much as digits as its factorization.

99994868089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725594112, while the sum is 79.

The spelling of 99994868089 in words is "ninety-nine billion, nine hundred ninety-four million, eight hundred sixty-eight thousand, eighty-nine".