99634291171 has 2 divisors, whose sum is σ = 99634291172. Its totient is φ = 99634291170.

The previous prime is 99634291103. The next prime is 99634291213. The reversal of 99634291171 is 17119243699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99634291171 - 2²⁷ = 99500073443 is a prime.

It is not a weakly prime, because it can be changed into another prime (99634291571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49817145585 + 49817145586.

It is an arithmetic number, because the mean of its divisors is an integer number (49817145586).

Almost surely, 2^99634291171 is an apocalyptic number.

99634291171 is a deficient number, since it is larger than the sum of its proper divisors (1).

99634291171 is an equidigital number, since it uses as much as digits as its factorization.

99634291171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 52.

The spelling of 99634291171 in words is "ninety-nine billion, six hundred thirty-four million, two hundred ninety-one thousand, one hundred seventy-one".