6813307894 has 32 divisors (see below), whose sum is σ = 10792419264. Its totient is φ = 3219532800.

The previous prime is 6813307877. The next prime is 6813307913. The reversal of 6813307894 is 4987033186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2753842 + ... + 2756314.

It is an arithmetic number, because the mean of its divisors is an integer number (337263102).

Almost surely, 2^6813307894 is an apocalyptic number.

6813307894 is a deficient number, since it is larger than the sum of its proper divisors (3979111370).

6813307894 is a wasteful number, since it uses less digits than its factorization.

6813307894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 6813307894 is about 82542.7640317430. The cubic root of 6813307894 is about 1895.7715656100.

The spelling of 6813307894 in words is "six billion, eight hundred thirteen million, three hundred seven thousand, eight hundred ninety-four".