4509555969 has 16 divisors (see below), whose sum is σ = 6391874880. Its totient is φ = 2819937600.

The previous prime is 4509555923. The next prime is 4509555971. The reversal of 4509555969 is 9695559054.

It is not a de Polignac number, because 4509555969 - 2¹² = 4509551873 is a prime.

It is a super-2 number, since 2×4509555969² = 40672190075087057922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4509555989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385902 + ... + 397415.

It is an arithmetic number, because the mean of its divisors is an integer number (399492180).

Almost surely, 2^4509555969 is an apocalyptic number.

It is an amenable number.

4509555969 is a deficient number, since it is larger than the sum of its proper divisors (1882318911).

4509555969 is a wasteful number, since it uses less digits than its factorization.

4509555969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783440.

The product of its (nonzero) digits is 10935000, while the sum is 57.

The square root of 4509555969 is about 67153.2275397095. The cubic root of 4509555969 is about 1652.1314320727.

The spelling of 4509555969 in words is "four billion, five hundred nine million, five hundred fifty-five thousand, nine hundred sixty-nine".