4085578811 has 4 divisors (see below), whose sum is σ = 4085770824. Its totient is φ = 4085386800.

The previous prime is 4085578807. The next prime is 4085578817. The reversal of 4085578811 is 1188755804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4085578811 - 2² = 4085578807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4085578817) 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, 59450 + ... + 108191.

It is an arithmetic number, because the mean of its divisors is an integer number (1021442706).

Almost surely, 2^4085578811 is an apocalyptic number.

4085578811 is a deficient number, since it is larger than the sum of its proper divisors (192013).

4085578811 is a wasteful number, since it uses less digits than its factorization.

4085578811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192012.

The product of its (nonzero) digits is 358400, while the sum is 47.

The square root of 4085578811 is about 63918.5326098777. The cubic root of 4085578811 is about 1598.6419219401.

The spelling of 4085578811 in words is "four billion, eighty-five million, five hundred seventy-eight thousand, eight hundred eleven".