16837085509 has 2 divisors, whose sum is σ = 16837085510. Its totient is φ = 16837085508.

The previous prime is 16837085491. The next prime is 16837085569. The reversal of 16837085509 is 90558073861.

16837085509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11887540900 + 4949544609 = 109030^2 + 70353^2 .

It is an emirp because it is prime and its reverse (90558073861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16837085509 - 2⁵ = 16837085477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16837085569) 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, 8418542754 + 8418542755.

It is an arithmetic number, because the mean of its divisors is an integer number (8418542755).

Almost surely, 2^16837085509 is an apocalyptic number.

It is an amenable number.

16837085509 is a deficient number, since it is larger than the sum of its proper divisors (1).

16837085509 is an equidigital number, since it uses as much as digits as its factorization.

16837085509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 16837085509 in words is "sixteen billion, eight hundred thirty-seven million, eighty-five thousand, five hundred nine".