813706704807 has 4 divisors (see below), whose sum is σ = 1084942273080. Its totient is φ = 542471136536.

The previous prime is 813706704751. The next prime is 813706704829. The reversal of 813706704807 is 708407607318.

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

It is a cyclic number.

It is not a de Polignac number, because 813706704807 - 2²⁴ = 813689927591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 813706704807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813706704847) 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, 135617784132 + ... + 135617784137.

It is an arithmetic number, because the mean of its divisors is an integer number (271235568270).

Almost surely, 2^813706704807 is an apocalyptic number.

813706704807 is a deficient number, since it is larger than the sum of its proper divisors (271235568273).

813706704807 is a wasteful number, since it uses less digits than its factorization.

813706704807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271235568272.

The product of its (nonzero) digits is 1580544, while the sum is 51.

The spelling of 813706704807 in words is "eight hundred thirteen billion, seven hundred six million, seven hundred four thousand, eight hundred seven".