4085738585041 has 3 divisors (see below), whose sum is σ = 4085740606363. Its totient is φ = 4085736563720.

The previous prime is 4085738585011. The next prime is 4085738585053. The reversal of 4085738585041 is 1405858375804.

The square root of 4085738585041 is 2021321.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 26480727441 + 4059257857600 = 162729^2 + 2014760^2 .

It is not a de Polignac number, because 4085738585041 - 2¹¹ = 4085738582993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4085738585011) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1010661 + ... + 3031981.

Almost surely, 2^{4085738585041} is an apocalyptic number.

4085738585041 is the 2021321-st square number.

4085738585041 is the 1010661-st centered octagonal number.

It is an amenable number.

4085738585041 is a deficient number, since it is larger than the sum of its proper divisors (2021322).

4085738585041 is an frugal number, since it uses more digits than its factorization.

4085738585041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042642 (or 2021321 counting only the distinct ones).

The product of its (nonzero) digits is 21504000, while the sum is 58.

The spelling of 4085738585041 in words is "four trillion, eighty-five billion, seven hundred thirty-eight million, five hundred eighty-five thousand, forty-one".