809973680347 has 32 divisors (see below), whose sum is σ = 903989166080. Its totient is φ = 720684034560.

The previous prime is 809973680207. The next prime is 809973680377. The reversal of 809973680347 is 743086379908.

809973680347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-809973680347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (809973680377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173699938 + ... + 173704600.

It is an arithmetic number, because the mean of its divisors is an integer number (28249661440).

Almost surely, 2^809973680347 is an apocalyptic number.

809973680347 is a deficient number, since it is larger than the sum of its proper divisors (94015485733).

809973680347 is a wasteful number, since it uses less digits than its factorization.

809973680347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6323.

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 809973680347 in words is "eight hundred nine billion, nine hundred seventy-three million, six hundred eighty thousand, three hundred forty-seven".