6609885784 has 16 divisors (see below), whose sum is σ = 12820899600. Its totient is φ = 3190979232.

The previous prime is 6609885781. The next prime is 6609885791. The reversal of 6609885784 is 4875889066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6609885781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14245212 + ... + 14245675.

It is an arithmetic number, because the mean of its divisors is an integer number (801306225).

Almost surely, 2^6609885784 is an apocalyptic number.

It is an amenable number.

6609885784 is a deficient number, since it is larger than the sum of its proper divisors (6211013816).

6609885784 is a wasteful number, since it uses less digits than its factorization.

6609885784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28490922 (or 28490918 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 61.

The square root of 6609885784 is about 81301.2040747245. The cubic root of 6609885784 is about 1876.7135301144.

The spelling of 6609885784 in words is "six billion, six hundred nine million, eight hundred eighty-five thousand, seven hundred eighty-four".