6805368345481 has 4 divisors (see below), whose sum is σ = 6824980358352. Its totient is φ = 6785756332612.

The previous prime is 6805368345469. The next prime is 6805368345541. The reversal of 6805368345481 is 1845438635086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6805368345481 - 2²³ = 6805359956873 is a prime.

It is a super-2 number, since 2×6805368345481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6805368345401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9806005915 + ... + 9806006608.

It is an arithmetic number, because the mean of its divisors is an integer number (1706245089588).

Almost surely, 2^{6805368345481} is an apocalyptic number.

It is an amenable number.

6805368345481 is a deficient number, since it is larger than the sum of its proper divisors (19612012871).

6805368345481 is a wasteful number, since it uses less digits than its factorization.

6805368345481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19612012870.

The product of its (nonzero) digits is 66355200, while the sum is 61.

The spelling of 6805368345481 in words is "six trillion, eight hundred five billion, three hundred sixty-eight million, three hundred forty-five thousand, four hundred eighty-one".