4144070641 has 4 divisors (see below), whose sum is σ = 4144728484. Its totient is φ = 4143412800.

The previous prime is 4144070621. The next prime is 4144070647. The reversal of 4144070641 is 1460704414.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1469112241 + 2674958400 = 38329^2 + 51720^2 .

It is a cyclic number.

It is not a de Polignac number, because 4144070641 - 2⁹ = 4144070129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4144070647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319380 + ... + 332101.

It is an arithmetic number, because the mean of its divisors is an integer number (1036182121).

Almost surely, 2^4144070641 is an apocalyptic number.

It is an amenable number.

4144070641 is a deficient number, since it is larger than the sum of its proper divisors (657843).

4144070641 is an equidigital number, since it uses as much as digits as its factorization.

4144070641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657842.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 4144070641 is about 64374.4564326566. The cubic root of 4144070641 is about 1606.2348704818.

The spelling of 4144070641 in words is "four billion, one hundred forty-four million, seventy thousand, six hundred forty-one".