3866985471841 has 8 divisors (see below), whose sum is σ = 3868756770600. Its totient is φ = 3865214545920.

The previous prime is 3866985471763. The next prime is 3866985471847. The reversal of 3866985471841 is 1481745896683.

3866985471841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 65265431841 + 3801720040000 = 255471^2 + 1949800^2 .

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 3866985471841 - 2⁹ = 3866985471329 is a prime.

It is a super-2 number, since 2×3866985471841² (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 (3866985471847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21819895 + ... + 21996403.

It is an arithmetic number, because the mean of its divisors is an integer number (483594596325).

Almost surely, 2^{3866985471841} is an apocalyptic number.

It is an amenable number.

3866985471841 is a deficient number, since it is larger than the sum of its proper divisors (1771298759).

3866985471841 is a wasteful number, since it uses less digits than its factorization.

3866985471841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186419.

The product of its digits is 278691840, while the sum is 70.

The spelling of 3866985471841 in words is "three trillion, eight hundred sixty-six billion, nine hundred eighty-five million, four hundred seventy-one thousand, eight hundred forty-one".