99826720633 has 2 divisors, whose sum is σ = 99826720634. Its totient is φ = 99826720632.

The previous prime is 99826720607. The next prime is 99826720639. The reversal of 99826720633 is 33602762899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75617850169 + 24208870464 = 274987^2 + 155592^2 .

It is a cyclic number.

It is not a de Polignac number, because 99826720633 - 2³³ = 91236786041 is a prime.

It is not a weakly prime, because it can be changed into another prime (99826720639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49913360316 + 49913360317.

It is an arithmetic number, because the mean of its divisors is an integer number (49913360317).

Almost surely, 2^99826720633 is an apocalyptic number.

It is an amenable number.

99826720633 is a deficient number, since it is larger than the sum of its proper divisors (1).

99826720633 is an equidigital number, since it uses as much as digits as its factorization.

99826720633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 99826720633 in words is "ninety-nine billion, eight hundred twenty-six million, seven hundred twenty thousand, six hundred thirty-three".