6504502785 has 16 divisors (see below), whose sum is σ = 11353314240. Its totient is φ = 3153698240.

The previous prime is 6504502759. The next prime is 6504502799. The reversal of 6504502785 is 5872054056.

It is not a de Polignac number, because 6504502785 - 2⁹ = 6504502273 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19710450 + ... + 19710779.

It is an arithmetic number, because the mean of its divisors is an integer number (709582140).

Almost surely, 2^6504502785 is an apocalyptic number.

It is an amenable number.

6504502785 is a deficient number, since it is larger than the sum of its proper divisors (4848811455).

6504502785 is a wasteful number, since it uses less digits than its factorization.

6504502785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39421248.

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 6504502785 is about 80650.4977355999. The cubic root of 6504502785 is about 1866.6864198413.

The spelling of 6504502785 in words is "six billion, five hundred four million, five hundred two thousand, seven hundred eighty-five".