180828910091 has 2 divisors, whose sum is σ = 180828910092. Its totient is φ = 180828910090.

The previous prime is 180828910051. The next prime is 180828910103. The reversal of 180828910091 is 190019828081.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180828910091 is a prime.

It is not a weakly prime, because it can be changed into another prime (180828910001) 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, 90414455045 + 90414455046.

It is an arithmetic number, because the mean of its divisors is an integer number (90414455046).

Almost surely, 2^180828910091 is an apocalyptic number.

180828910091 is a deficient number, since it is larger than the sum of its proper divisors (1).

180828910091 is an equidigital number, since it uses as much as digits as its factorization.

180828910091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 47.

The spelling of 180828910091 in words is "one hundred eighty billion, eight hundred twenty-eight million, nine hundred ten thousand, ninety-one".