809863934829 has 8 divisors (see below), whose sum is σ = 1114651437312. Its totient is φ = 522492861120.

The previous prime is 809863934809. The next prime is 809863934839. The reversal of 809863934829 is 928439368908.

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

It is not a de Polignac number, because 809863934829 - 2⁷ = 809863934701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809863934809) 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, 4354107084 + ... + 4354107269.

It is an arithmetic number, because the mean of its divisors is an integer number (139331429664).

Almost surely, 2^809863934829 is an apocalyptic number.

It is an amenable number.

809863934829 is a deficient number, since it is larger than the sum of its proper divisors (304787502483).

809863934829 is a wasteful number, since it uses less digits than its factorization.

809863934829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708214387.

The product of its (nonzero) digits is 161243136, while the sum is 69.

The spelling of 809863934829 in words is "eight hundred nine billion, eight hundred sixty-three million, nine hundred thirty-four thousand, eight hundred twenty-nine".