16802810909 has 2 divisors, whose sum is σ = 16802810910. Its totient is φ = 16802810908.

The previous prime is 16802810837. The next prime is 16802810933. The reversal of 16802810909 is 90901820861.

16802810909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14651892025 + 2150918884 = 121045^2 + 46378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16802810909 is a prime.

It is a super-3 number, since 3×16802810909³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16802810909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16802810009) 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, 8401405454 + 8401405455.

It is an arithmetic number, because the mean of its divisors is an integer number (8401405455).

Almost surely, 2^16802810909 is an apocalyptic number.

It is an amenable number.

16802810909 is a deficient number, since it is larger than the sum of its proper divisors (1).

16802810909 is an equidigital number, since it uses as much as digits as its factorization.

16802810909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 16802810909 in words is "sixteen billion, eight hundred two million, eight hundred ten thousand, nine hundred nine".