6809656523 has 8 divisors (see below), whose sum is σ = 6956997120. Its totient is φ = 6662418280.

The previous prime is 6809656501. The next prime is 6809656531. The reversal of 6809656523 is 3256569086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6809656523 - 2⁸ = 6809656267 is a prime.

It is a super-2 number, since 2×6809656523² = 92742843922472899058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6809656583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117458 + ... + 165576.

It is an arithmetic number, because the mean of its divisors is an integer number (869624640).

Almost surely, 2^6809656523 is an apocalyptic number.

6809656523 is a deficient number, since it is larger than the sum of its proper divisors (147340597).

6809656523 is a wasteful number, since it uses less digits than its factorization.

6809656523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51177.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The square root of 6809656523 is about 82520.6430113096. The cubic root of 6809656523 is about 1895.4328460353.

The spelling of 6809656523 in words is "six billion, eight hundred nine million, six hundred fifty-six thousand, five hundred twenty-three".