8991468190829 has 2 divisors, whose sum is σ = 8991468190830. Its totient is φ = 8991468190828.

The previous prime is 8991468190813. The next prime is 8991468190919. The reversal of 8991468190829 is 9280918641998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8209932628804 + 781535562025 = 2865298^2 + 884045^2 .

It is a cyclic number.

It is not a de Polignac number, because 8991468190829 - 2⁴ = 8991468190813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8991468190729) 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, 4495734095414 + 4495734095415.

It is an arithmetic number, because the mean of its divisors is an integer number (4495734095415).

Almost surely, 2^{8991468190829} is an apocalyptic number.

It is an amenable number.

8991468190829 is a deficient number, since it is larger than the sum of its proper divisors (1).

8991468190829 is an equidigital number, since it uses as much as digits as its factorization.

8991468190829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161243136, while the sum is 74.

The spelling of 8991468190829 in words is "eight trillion, nine hundred ninety-one billion, four hundred sixty-eight million, one hundred ninety thousand, eight hundred twenty-nine".