6811775045 has 8 divisors (see below), whose sum is σ = 8258400024. Its totient is φ = 5393240064.

The previous prime is 6811775029. The next prime is 6811775071. The reversal of 6811775045 is 5405771186.

It can be written as a sum of positive squares in 4 ways, for example, as 3214849 + 6808560196 = 1793^2 + 82514^2 .

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 6811775045 - 2⁴ = 6811775029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6811774987 and 6811775005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7021964 + ... + 7022933.

It is an arithmetic number, because the mean of its divisors is an integer number (1032300003).

Almost surely, 2^6811775045 is an apocalyptic number.

It is an amenable number.

6811775045 is a deficient number, since it is larger than the sum of its proper divisors (1446624979).

6811775045 is a wasteful number, since it uses less digits than its factorization.

6811775045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14044999.

The product of its (nonzero) digits is 235200, while the sum is 44.

The square root of 6811775045 is about 82533.4783284941. The cubic root of 6811775045 is about 1895.6293855536.

The spelling of 6811775045 in words is "six billion, eight hundred eleven million, seven hundred seventy-five thousand, forty-five".