990226000193 has 2 divisors, whose sum is σ = 990226000194. Its totient is φ = 990226000192.

The previous prime is 990226000187. The next prime is 990226000207. The reversal of 990226000193 is 391000622099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657351235984 + 332874764209 = 810772^2 + 576953^2 .

It is a cyclic number.

It is not a de Polignac number, because 990226000193 - 2⁴ = 990226000177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 990226000193.

It is not a weakly prime, because it can be changed into another prime (990226000103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495113000096 + 495113000097.

It is an arithmetic number, because the mean of its divisors is an integer number (495113000097).

Almost surely, 2^990226000193 is an apocalyptic number.

It is an amenable number.

990226000193 is a deficient number, since it is larger than the sum of its proper divisors (1).

990226000193 is an equidigital number, since it uses as much as digits as its factorization.

990226000193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 990226000193 in words is "nine hundred ninety billion, two hundred twenty-six million, one hundred ninety-three", and thus it is an aban number.