16828606609 has 2 divisors, whose sum is σ = 16828606610. Its totient is φ = 16828606608.

The previous prime is 16828606537. The next prime is 16828606643. The reversal of 16828606609 is 90660682861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13214192209 + 3614414400 = 114953^2 + 60120^2 .

It is a cyclic number.

It is not a de Polignac number, because 16828606609 - 2¹⁹ = 16828082321 is a prime.

It is not a weakly prime, because it can be changed into another prime (16828606909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8414303304 + 8414303305.

It is an arithmetic number, because the mean of its divisors is an integer number (8414303305).

Almost surely, 2^16828606609 is an apocalyptic number.

It is an amenable number.

16828606609 is a deficient number, since it is larger than the sum of its proper divisors (1).

16828606609 is an equidigital number, since it uses as much as digits as its factorization.

16828606609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 16828606609 in words is "sixteen billion, eight hundred twenty-eight million, six hundred six thousand, six hundred nine".