6811418405 has 16 divisors (see below), whose sum is σ = 8937485568. Its totient is φ = 4942248000.

The previous prime is 6811418401. The next prime is 6811418423. The reversal of 6811418405 is 5048141186.

It is not a de Polignac number, because 6811418405 - 2² = 6811418401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6811418401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119966 + ... + 167375.

It is an arithmetic number, because the mean of its divisors is an integer number (558592848).

Almost surely, 2^6811418405 is an apocalyptic number.

It is an amenable number.

6811418405 is a deficient number, since it is larger than the sum of its proper divisors (2126067163).

6811418405 is a wasteful number, since it uses less digits than its factorization.

6811418405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287788.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 6811418405 is about 82531.3177224258. The cubic root of 6811418405 is about 1895.5963022012.

The spelling of 6811418405 in words is "six billion, eight hundred eleven million, four hundred eighteen thousand, four hundred five".