6509728884 has 24 divisors (see below), whose sum is σ = 15194656288. Its totient is φ = 2169154080.

The previous prime is 6509728817. The next prime is 6509728891. The reversal of 6509728884 is 4888279056.

It is a super-3 number, since 3×6509728884³ (a number of 30 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57982 + ... + 127989.

Almost surely, 2^6509728884 is an apocalyptic number.

It is an amenable number.

6509728884 is an abundant number, since it is smaller than the sum of its proper divisors (8684927404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6509728884 is a wasteful number, since it uses less digits than its factorization.

6509728884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188895 (or 188893 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The square root of 6509728884 is about 80682.8909001159. The cubic root of 6509728884 is about 1867.1862211230.

The spelling of 6509728884 in words is "six billion, five hundred nine million, seven hundred twenty-eight thousand, eight hundred eighty-four".