6814393405 has 8 divisors (see below), whose sum is σ = 8186004792. Its totient is φ = 5445692928.

The previous prime is 6814393393. The next prime is 6814393409. The reversal of 6814393405 is 5043934186.

It can be written as a sum of positive squares in 4 ways, for example, as 500819641 + 6313573764 = 22379^2 + 79458^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6814393405 - 2¹¹ = 6814391357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6814393409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 722572 + ... + 731941.

It is an arithmetic number, because the mean of its divisors is an integer number (1023250599).

Almost surely, 2^6814393405 is an apocalyptic number.

It is an amenable number.

6814393405 is a deficient number, since it is larger than the sum of its proper divisors (1371611387).

6814393405 is a wasteful number, since it uses less digits than its factorization.

6814393405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455455.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 6814393405 is about 82549.3392160107. The cubic root of 6814393405 is about 1895.8722397436.

The spelling of 6814393405 in words is "six billion, eight hundred fourteen million, three hundred ninety-three thousand, four hundred five".