6686577073 has 4 divisors (see below), whose sum is σ = 7294447728. Its totient is φ = 6078706420.

The previous prime is 6686577049. The next prime is 6686577077. The reversal of 6686577073 is 3707756866.

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 a de Polignac number, because none of the positive numbers 2^k-6686577073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6686577077) 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, 303935311 + ... + 303935332.

It is an arithmetic number, because the mean of its divisors is an integer number (1823611932).

Almost surely, 2^6686577073 is an apocalyptic number.

It is an amenable number.

6686577073 is a deficient number, since it is larger than the sum of its proper divisors (607870655).

6686577073 is a wasteful number, since it uses less digits than its factorization.

6686577073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607870654.

The product of its (nonzero) digits is 8890560, while the sum is 55.

The square root of 6686577073 is about 81771.4930339418. The cubic root of 6686577073 is about 1883.9438365740.

The spelling of 6686577073 in words is "six billion, six hundred eighty-six million, five hundred seventy-seven thousand, seventy-three".