6813654943 has 8 divisors (see below), whose sum is σ = 6970642560. Its totient is φ = 6658050840.

The previous prime is 6813654919. The next prime is 6813654949. The reversal of 6813654943 is 3494563186.

It is a happy number.

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 6813654943 - 2⁹ = 6813654431 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 (6813654949) 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, 335913 + ... + 355618.

It is an arithmetic number, because the mean of its divisors is an integer number (871330320).

Almost surely, 2^6813654943 is an apocalyptic number.

6813654943 is a deficient number, since it is larger than the sum of its proper divisors (156987617).

6813654943 is a wasteful number, since it uses less digits than its factorization.

6813654943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691757.

The product of its digits is 1866240, while the sum is 49.

The square root of 6813654943 is about 82544.8662425471. The cubic root of 6813654943 is about 1895.8037533258.

The spelling of 6813654943 in words is "six billion, eight hundred thirteen million, six hundred fifty-four thousand, nine hundred forty-three".