3963944259 has 12 divisors (see below), whose sum is σ = 6246215352. Its totient is φ = 2402390400.

The previous prime is 3963944227. The next prime is 3963944261. The reversal of 3963944259 is 9524493693.

It is not a de Polignac number, because 3963944259 - 2⁵ = 3963944227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3963944209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20019822 + ... + 20020019.

It is an arithmetic number, because the mean of its divisors is an integer number (520517946).

Almost surely, 2^3963944259 is an apocalyptic number.

3963944259 is a deficient number, since it is larger than the sum of its proper divisors (2282271093).

3963944259 is a wasteful number, since it uses less digits than its factorization.

3963944259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40039858 (or 40039855 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 54.

The square root of 3963944259 is about 62959.8622854275. The cubic root of 3963944259 is about 1582.6170721172.

The spelling of 3963944259 in words is "three billion, nine hundred sixty-three million, nine hundred forty-four thousand, two hundred fifty-nine".