6811621411 has 8 divisors (see below), whose sum is σ = 7795424000. Its totient is φ = 5830497288.

The previous prime is 6811621381. The next prime is 6811621423. The reversal of 6811621411 is 1141261186.

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

It is not a de Polignac number, because 6811621411 - 2²³ = 6803232803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6811621811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664161 + ... + 674338.

It is an arithmetic number, because the mean of its divisors is an integer number (974428000).

Almost surely, 2^6811621411 is an apocalyptic number.

6811621411 is a deficient number, since it is larger than the sum of its proper divisors (983802589).

6811621411 is a wasteful number, since it uses less digits than its factorization.

6811621411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339233.

The product of its digits is 2304, while the sum is 31.

The square root of 6811621411 is about 82532.5475857858. The cubic root of 6811621411 is about 1895.6151339911.

Adding to 6811621411 its reverse (1141261186), we get a palindrome (7952882597).

The spelling of 6811621411 in words is "six billion, eight hundred eleven million, six hundred twenty-one thousand, four hundred eleven".