4227646871881 has 16 divisors (see below), whose sum is σ = 4516731626560. Its totient is φ = 3945223972800.

The previous prime is 4227646871863. The next prime is 4227646871891. The reversal of 4227646871881 is 1881786467224.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4227646871881 - 2¹⁵ = 4227646839113 is a prime.

It is a super-2 number, since 2×4227646871881² (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 (4227646871891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71386975 + ... + 71446171.

It is an arithmetic number, because the mean of its divisors is an integer number (282295726660).

Almost surely, 2^{4227646871881} is an apocalyptic number.

It is an amenable number.

4227646871881 is a deficient number, since it is larger than the sum of its proper divisors (289084754679).

4227646871881 is a wasteful number, since it uses less digits than its factorization.

4227646871881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115384.

The product of its digits is 57802752, while the sum is 64.

The spelling of 4227646871881 in words is "four trillion, two hundred twenty-seven billion, six hundred forty-six million, eight hundred seventy-one thousand, eight hundred eighty-one".