6507394009 has 4 divisors (see below), whose sum is σ = 6532137216. Its totient is φ = 6482650804.

The previous prime is 6507393989. The next prime is 6507394057. The reversal of 6507394009 is 9004937056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6507394009 - 2²⁵ = 6473839577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6507394609) 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, 12371209 + ... + 12371734.

It is an arithmetic number, because the mean of its divisors is an integer number (1633034304).

Almost surely, 2^6507394009 is an apocalyptic number.

It is an amenable number.

6507394009 is a deficient number, since it is larger than the sum of its proper divisors (24743207).

6507394009 is a wasteful number, since it uses less digits than its factorization.

6507394009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24743206.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 6507394009 is about 80668.4201469199. The cubic root of 6507394009 is about 1866.9629569471.

The spelling of 6507394009 in words is "six billion, five hundred seven million, three hundred ninety-four thousand, nine".