99349894309 has 2 divisors, whose sum is σ = 99349894310. Its totient is φ = 99349894308.

The previous prime is 99349894307. The next prime is 99349894313. The reversal of 99349894309 is 90349894399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98547022084 + 802872225 = 313922^2 + 28335^2 .

It is a cyclic number.

It is not a de Polignac number, because 99349894309 - 2¹ = 99349894307 is a prime.

Together with 99349894307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99349894307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49674947154 + 49674947155.

It is an arithmetic number, because the mean of its divisors is an integer number (49674947155).

Almost surely, 2^99349894309 is an apocalyptic number.

It is an amenable number.

99349894309 is a deficient number, since it is larger than the sum of its proper divisors (1).

99349894309 is an equidigital number, since it uses as much as digits as its factorization.

99349894309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68024448, while the sum is 67.

The spelling of 99349894309 in words is "ninety-nine billion, three hundred forty-nine million, eight hundred ninety-four thousand, three hundred nine".