16039462609 has 9 divisors (see below), whose sum is σ = 16233113883. Its totient is φ = 15848098992.

The previous prime is 16039462603. The next prime is 16039462613. The reversal of 16039462609 is 90626493061.

The square root of 16039462609 is 126647.

It is a perfect power (a square), and thus also a powerful number.

16039462609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3079917009 + 12959545600 = 55497^2 + 113840^2 .

It is not a de Polignac number, because 16039462609 - 2³ = 16039462601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16039462601) 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 in 8 ways as a sum of consecutive naturals, for example, 11270872 + ... + 11272294.

Almost surely, 2^16039462609 is an apocalyptic number.

16039462609 is the 126647-th square number.

16039462609 is the 63324-th centered octagonal number.

It is an amenable number.

16039462609 is a deficient number, since it is larger than the sum of its proper divisors (193651274).

16039462609 is an frugal number, since it uses more digits than its factorization.

16039462609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 16039462609 in words is "sixteen billion, thirty-nine million, four hundred sixty-two thousand, six hundred nine".