813765783182834 has 32 divisors (see below), whose sum is σ = 1233091943516160. Its totient is φ = 402738951932352.

The previous prime is 813765783182783. The next prime is 813765783182837. The reversal of 813765783182834 is 438281387567318.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (813765783182837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11528188412 + ... + 11528259000.

It is an arithmetic number, because the mean of its divisors is an integer number (38534123234880).

Almost surely, 2^{813765783182834} is an apocalyptic number.

813765783182834 is a deficient number, since it is larger than the sum of its proper divisors (419326160333326).

813765783182834 is a wasteful number, since it uses less digits than its factorization.

813765783182834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96794.

The product of its digits is 1300561920, while the sum is 74.

The spelling of 813765783182834 in words is "eight hundred thirteen trillion, seven hundred sixty-five billion, seven hundred eighty-three million, one hundred eighty-two thousand, eight hundred thirty-four".