6683512817 has 4 divisors (see below), whose sum is σ = 6717439476. Its totient is φ = 6649586160.

The previous prime is 6683512813. The next prime is 6683512819. The reversal of 6683512817 is 7182153866.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3936809536 + 2746703281 = 62744^2 + 52409^2 .

It is a cyclic number.

It is not a de Polignac number, because 6683512817 - 2² = 6683512813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6683512813) 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, 16963034 + ... + 16963427.

It is an arithmetic number, because the mean of its divisors is an integer number (1679359869).

Almost surely, 2^6683512817 is an apocalyptic number.

It is an amenable number.

6683512817 is a deficient number, since it is larger than the sum of its proper divisors (33926659).

6683512817 is a wasteful number, since it uses less digits than its factorization.

6683512817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33926658.

The product of its digits is 483840, while the sum is 47.

The square root of 6683512817 is about 81752.7541860212. The cubic root of 6683512817 is about 1883.6560077785.

The spelling of 6683512817 in words is "six billion, six hundred eighty-three million, five hundred twelve thousand, eight hundred seventeen".