6813531794 has 8 divisors (see below), whose sum is σ = 10314062220. Its totient is φ = 3375511056.

The previous prime is 6813531787. The next prime is 6813531871. The reversal of 6813531794 is 4971353186.

It is a happy number.

6813531794 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6615707569 + 197824225 = 81337^2 + 14065^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15627149 + ... + 15627584.

Almost surely, 2^6813531794 is an apocalyptic number.

6813531794 is a deficient number, since it is larger than the sum of its proper divisors (3500530426).

6813531794 is a wasteful number, since it uses less digits than its factorization.

6813531794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31254844.

The product of its digits is 544320, while the sum is 47.

The square root of 6813531794 is about 82544.1202872742. The cubic root of 6813531794 is about 1895.7923317640.

The spelling of 6813531794 in words is "six billion, eight hundred thirteen million, five hundred thirty-one thousand, seven hundred ninety-four".