3853855106281 has 16 divisors (see below), whose sum is σ = 4224257859600. Its totient is φ = 3499597201408.

The previous prime is 3853855106237. The next prime is 3853855106333. The reversal of 3853855106281 is 1826015583583.

It can be written as a sum of positive squares in 8 ways, for example, as 913727603881 + 2940127502400 = 955891^2 + 1714680^2 .

It is a cyclic number.

It is not a de Polignac number, because 3853855106281 - 2¹¹ = 3853855104233 is a prime.

It is a super-2 number, since 2×3853855106281² (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 (3853855106201) 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 15 ways as a sum of consecutive naturals, for example, 2079370 + ... + 3468643.

It is an arithmetic number, because the mean of its divisors is an integer number (264016116225).

Almost surely, 2^{3853855106281} is an apocalyptic number.

It is an amenable number.

3853855106281 is a deficient number, since it is larger than the sum of its proper divisors (370402753319).

3853855106281 is a wasteful number, since it uses less digits than its factorization.

3853855106281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5549468.

The product of its (nonzero) digits is 6912000, while the sum is 55.

The spelling of 3853855106281 in words is "three trillion, eight hundred fifty-three billion, eight hundred fifty-five million, one hundred six thousand, two hundred eighty-one".