6807328691 has 4 divisors (see below), whose sum is σ = 6828803232. Its totient is φ = 6785854152.

The previous prime is 6807328681. The next prime is 6807328741. The reversal of 6807328691 is 1968237086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1968237086 = 2 ⋅984118543.

It is a cyclic number.

It is not a de Polignac number, because 6807328691 - 2³⁰ = 5733586867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6807328681) 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, 10736795 + ... + 10737428.

It is an arithmetic number, because the mean of its divisors is an integer number (1707200808).

Almost surely, 2^6807328691 is an apocalyptic number.

6807328691 is a deficient number, since it is larger than the sum of its proper divisors (21474541).

6807328691 is a wasteful number, since it uses less digits than its factorization.

6807328691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21474540.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 6807328691 is about 82506.5372622073. The cubic root of 6807328691 is about 1895.2168414014.

The spelling of 6807328691 in words is "six billion, eight hundred seven million, three hundred twenty-eight thousand, six hundred ninety-one".