99678195833 has 2 divisors, whose sum is σ = 99678195834. Its totient is φ = 99678195832.

The previous prime is 99678195829. The next prime is 99678195847. The reversal of 99678195833 is 33859187699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63704245609 + 35973950224 = 252397^2 + 189668^2 .

It is an emirp because it is prime and its reverse (33859187699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99678195833 - 2² = 99678195829 is a prime.

It is not a weakly prime, because it can be changed into another prime (99678195893) 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, 49839097916 + 49839097917.

It is an arithmetic number, because the mean of its divisors is an integer number (49839097917).

Almost surely, 2^99678195833 is an apocalyptic number.

It is an amenable number.

99678195833 is a deficient number, since it is larger than the sum of its proper divisors (1).

99678195833 is an equidigital number, since it uses as much as digits as its factorization.

99678195833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88179840, while the sum is 68.

The spelling of 99678195833 in words is "ninety-nine billion, six hundred seventy-eight million, one hundred ninety-five thousand, eight hundred thirty-three".