3865052417447 has 16 divisors (see below), whose sum is σ = 4177171827360. Its totient is φ = 3555051906432.

The previous prime is 3865052417419. The next prime is 3865052417449. The reversal of 3865052417447 is 7447142505683.

It is a happy number.

It is not a de Polignac number, because 3865052417447 - 2¹⁶ = 3865052351911 is a prime.

It is a super-2 number, since 2×3865052417447² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3865052417392 and 3865052417401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865052417449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27762929 + ... + 27901797.

It is an arithmetic number, because the mean of its divisors is an integer number (261073239210).

Almost surely, 2^{3865052417447} is an apocalyptic number.

3865052417447 is a deficient number, since it is larger than the sum of its proper divisors (312119409913).

3865052417447 is a wasteful number, since it uses less digits than its factorization.

3865052417447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146482.

The product of its (nonzero) digits is 22579200, while the sum is 56.

The spelling of 3865052417447 in words is "three trillion, eight hundred sixty-five billion, fifty-two million, four hundred seventeen thousand, four hundred forty-seven".