99909900982807 has 2 divisors, whose sum is σ = 99909900982808. Its totient is φ = 99909900982806.

The previous prime is 99909900982751. The next prime is 99909900982817. The reversal of 99909900982807 is 70828900990999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99909900982807 - 2³¹ = 99907753499159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99909900982817) 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, 49954950491403 + 49954950491404.

It is an arithmetic number, because the mean of its divisors is an integer number (49954950491404).

Almost surely, 2^{99909900982807} is an apocalyptic number.

99909900982807 is a deficient number, since it is larger than the sum of its proper divisors (1).

99909900982807 is an equidigital number, since it uses as much as digits as its factorization.

99909900982807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476171136, while the sum is 79.

The spelling of 99909900982807 in words is "ninety-nine trillion, nine hundred nine billion, nine hundred million, nine hundred eighty-two thousand, eight hundred seven".