6813531841 has 8 divisors (see below), whose sum is σ = 7180064480. Its totient is φ = 6447791808.

The previous prime is 6813531787. The next prime is 6813531871. The reversal of 6813531841 is 1481353186.

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 6813531841 - 2²⁵ = 6779977409 is a prime.

It is a super-2 number, since 2×6813531841² = 92848432296641698562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6813531794 and 6813531803.

It is not an unprimeable number, because it can be changed into a prime (6813531871) 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, 180456 + ... + 214921.

It is an arithmetic number, because the mean of its divisors is an integer number (897508060).

Almost surely, 2^6813531841 is an apocalyptic number.

It is an amenable number.

6813531841 is a deficient number, since it is larger than the sum of its proper divisors (366532639).

6813531841 is a wasteful number, since it uses less digits than its factorization.

6813531841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396303.

The product of its digits is 69120, while the sum is 40.

The square root of 6813531841 is about 82544.1205719705. The cubic root of 6813531841 is about 1895.7923361231.

The spelling of 6813531841 in words is "six billion, eight hundred thirteen million, five hundred thirty-one thousand, eight hundred forty-one".