16886705189 has 2 divisors, whose sum is σ = 16886705190. Its totient is φ = 16886705188.

The previous prime is 16886705167. The next prime is 16886705263. The reversal of 16886705189 is 98150768861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15348732100 + 1537973089 = 123890^2 + 39217^2 .

It is a cyclic number.

It is not a de Polignac number, because 16886705189 - 2¹² = 16886701093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16886705089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8443352594 + 8443352595.

It is an arithmetic number, because the mean of its divisors is an integer number (8443352595).

Almost surely, 2^16886705189 is an apocalyptic number.

It is an amenable number.

16886705189 is a deficient number, since it is larger than the sum of its proper divisors (1).

16886705189 is an equidigital number, since it uses as much as digits as its factorization.

16886705189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 59.

The spelling of 16886705189 in words is "sixteen billion, eight hundred eighty-six million, seven hundred five thousand, one hundred eighty-nine".