16886770489 has 2 divisors, whose sum is σ = 16886770490. Its totient is φ = 16886770488.

The previous prime is 16886770471. The next prime is 16886770513. The reversal of 16886770489 is 98407768861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11441511225 + 5445259264 = 106965^2 + 73792^2 .

It is an emirp because it is prime and its reverse (98407768861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16886770489 - 2²⁵ = 16853216057 is a prime.

It is a super-2 number, since 2×16886770489² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16886770489.

It is not a weakly prime, because it can be changed into another prime (16886777489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8443385244 + 8443385245.

It is an arithmetic number, because the mean of its divisors is an integer number (8443385245).

Almost surely, 2^16886770489 is an apocalyptic number.

It is an amenable number.

16886770489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16886770489 is an equidigital number, since it uses as much as digits as its factorization.

16886770489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32514048, while the sum is 64.

The spelling of 16886770489 in words is "sixteen billion, eight hundred eighty-six million, seven hundred seventy thousand, four hundred eighty-nine".