4066538485 has 8 divisors (see below), whose sum is σ = 5048116920. Its totient is φ = 3141050304.

The previous prime is 4066538477. The next prime is 4066538573. The reversal of 4066538485 is 5848356604.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 734247409 + 3332291076 = 27097^2 + 57726^2 .

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 4066538485 - 2³ = 4066538477 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14022402 + ... + 14022691.

It is an arithmetic number, because the mean of its divisors is an integer number (631014615).

Almost surely, 2^4066538485 is an apocalyptic number.

It is an amenable number.

4066538485 is a deficient number, since it is larger than the sum of its proper divisors (981578435).

4066538485 is a wasteful number, since it uses less digits than its factorization.

4066538485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28045127.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The square root of 4066538485 is about 63769.4165333195. The cubic root of 4066538485 is about 1596.1546308482.

The spelling of 4066538485 in words is "four billion, sixty-six million, five hundred thirty-eight thousand, four hundred eighty-five".