9091828190909 has 2 divisors, whose sum is σ = 9091828190910. Its totient is φ = 9091828190908.

The previous prime is 9091828190869. The next prime is 9091828191013. The reversal of 9091828190909 is 9090918281909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7574797495225 + 1517030695684 = 2752235^2 + 1231678^2 .

It is a cyclic number.

It is not a de Polignac number, because 9091828190909 - 2³⁶ = 9023108714173 is a prime.

It is a super-2 number, since 2×9091828190909² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9091828490909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4545914095454 + 4545914095455.

It is an arithmetic number, because the mean of its divisors is an integer number (4545914095455).

Almost surely, 2^{9091828190909} is an apocalyptic number.

It is an amenable number.

9091828190909 is a deficient number, since it is larger than the sum of its proper divisors (1).

9091828190909 is an equidigital number, since it uses as much as digits as its factorization.

9091828190909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7558272, while the sum is 65.

The spelling of 9091828190909 in words is "nine trillion, ninety-one billion, eight hundred twenty-eight million, one hundred ninety thousand, nine hundred nine".