4065041019 has 16 divisors (see below), whose sum is σ = 5882949632. Its totient is φ = 2481863328.

The previous prime is 4065041009. The next prime is 4065041023. The reversal of 4065041019 is 9101405604.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4065041019 is a prime.

It is a super-2 number, since 2×4065041019² = 33049116972305116722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4065041009) 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, 405409 + ... + 415314.

It is an arithmetic number, because the mean of its divisors is an integer number (367684352).

Almost surely, 2^4065041019 is an apocalyptic number.

4065041019 is a deficient number, since it is larger than the sum of its proper divisors (1817908613).

4065041019 is a wasteful number, since it uses less digits than its factorization.

4065041019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820866.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 4065041019 is about 63757.6741969153. The cubic root of 4065041019 is about 1595.9586836278.

The spelling of 4065041019 in words is "four billion, sixty-five million, forty-one thousand, nineteen".