6813385634 has 24 divisors (see below), whose sum is σ = 11655019152. Its totient is φ = 2962336520.

The previous prime is 6813385627. The next prime is 6813385637. The reversal of 6813385634 is 4365833186.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6813385637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281084 + ... + 304359.

It is an arithmetic number, because the mean of its divisors is an integer number (485625798).

Almost surely, 2^6813385634 is an apocalyptic number.

6813385634 is a deficient number, since it is larger than the sum of its proper divisors (4841633518).

6813385634 is a wasteful number, since it uses less digits than its factorization.

6813385634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585502 (or 585479 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 47.

The square root of 6813385634 is about 82543.2349378191. The cubic root of 6813385634 is about 1895.7787758483.

The spelling of 6813385634 in words is "six billion, eight hundred thirteen million, three hundred eighty-five thousand, six hundred thirty-four".