6609028989 has 32 divisors (see below), whose sum is σ = 9538300800. Its totient is φ = 4056791040.

The previous prime is 6609028961. The next prime is 6609029003. The reversal of 6609028989 is 9898209066.

It is not a de Polignac number, because 6609028989 - 2¹⁵ = 6608996221 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6609028949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 623397 + ... + 633909.

It is an arithmetic number, because the mean of its divisors is an integer number (298071900).

Almost surely, 2^6609028989 is an apocalyptic number.

It is an amenable number.

6609028989 is a deficient number, since it is larger than the sum of its proper divisors (2929271811).

6609028989 is a wasteful number, since it uses less digits than its factorization.

6609028989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10845.

The product of its (nonzero) digits is 3359232, while the sum is 57.

The square root of 6609028989 is about 81295.9346400544. The cubic root of 6609028989 is about 1876.6324380299.

The spelling of 6609028989 in words is "six billion, six hundred nine million, twenty-eight thousand, nine hundred eighty-nine".