4018128841 has 4 divisors (see below), whose sum is σ = 4103620992. Its totient is φ = 3932636692.

The previous prime is 4018128791. The next prime is 4018128859. The reversal of 4018128841 is 1488218104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4018128841 - 2¹⁷ = 4017997769 is a prime.

It is a super-2 number, since 2×4018128841² = 32290718765752006562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4018128841.

It is not an unprimeable number, because it can be changed into a prime (4018128941) 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 3 ways as a sum of consecutive naturals, for example, 42746005 + ... + 42746098.

It is an arithmetic number, because the mean of its divisors is an integer number (1025905248).

Almost surely, 2^4018128841 is an apocalyptic number.

It is an amenable number.

4018128841 is a deficient number, since it is larger than the sum of its proper divisors (85492151).

4018128841 is an equidigital number, since it uses as much as digits as its factorization.

4018128841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85492150.

The product of its (nonzero) digits is 16384, while the sum is 37.

The square root of 4018128841 is about 63388.7122522614. The cubic root of 4018128841 is about 1589.7955832032.

The spelling of 4018128841 in words is "four billion, eighteen million, one hundred twenty-eight thousand, eight hundred forty-one".