9899159510771 has 2 divisors, whose sum is σ = 9899159510772. Its totient is φ = 9899159510770.

The previous prime is 9899159510749. The next prime is 9899159510819. The reversal of 9899159510771 is 1770159519989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9899159510771 - 2⁴² = 5501112999667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9899159510695 and 9899159510704.

It is not a weakly prime, because it can be changed into another prime (9899159510701) 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, 4949579755385 + 4949579755386.

It is an arithmetic number, because the mean of its divisors is an integer number (4949579755386).

Almost surely, 2^{9899159510771} is an apocalyptic number.

9899159510771 is a deficient number, since it is larger than the sum of its proper divisors (1).

9899159510771 is an equidigital number, since it uses as much as digits as its factorization.

9899159510771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64297800, while the sum is 71.

The spelling of 9899159510771 in words is "nine trillion, eight hundred ninety-nine billion, one hundred fifty-nine million, five hundred ten thousand, seven hundred seventy-one".