16860050489 has 4 divisors (see below), whose sum is σ = 16860724260. Its totient is φ = 16859376720.

The previous prime is 16860050483. The next prime is 16860050521. The reversal of 16860050489 is 98405006861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98405006861 = 7 ⋅14057858123.

It can be written as a sum of positive squares in 2 ways, for example, as 2509208464 + 14350842025 = 50092^2 + 119795^2 .

It is a cyclic number.

It is not a de Polignac number, because 16860050489 - 2¹² = 16860046393 is a prime.

It is a super-3 number, since 3×16860050489³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16860050483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297842 + ... + 349899.

It is an arithmetic number, because the mean of its divisors is an integer number (4215181065).

Almost surely, 2^16860050489 is an apocalyptic number.

It is an amenable number.

16860050489 is a deficient number, since it is larger than the sum of its proper divisors (673771).

16860050489 is an equidigital number, since it uses as much as digits as its factorization.

16860050489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673770.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 16860050489 in words is "sixteen billion, eight hundred sixty million, fifty thousand, four hundred eighty-nine".