3963819136 has 16 divisors (see below), whose sum is σ = 7896671190. Its totient is φ = 1981909504.

The previous prime is 3963819109. The next prime is 3963819157. The reversal of 3963819136 is 6319183693.

It can be written as a sum of positive squares in only one way, i.e., 3331598400 + 632220736 = 57720^2 + 25144^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 3963819136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15483541 + ... + 15483796.

Almost surely, 2^3963819136 is an apocalyptic number.

It is an amenable number.

3963819136 is a deficient number, since it is larger than the sum of its proper divisors (3932852054).

3963819136 is an equidigital number, since it uses as much as digits as its factorization.

3963819136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30967351 (or 30967339 counting only the distinct ones).

The product of its digits is 629856, while the sum is 49.

The square root of 3963819136 is about 62958.8686048280. The cubic root of 3963819136 is about 1582.6004200264.

The spelling of 3963819136 in words is "three billion, nine hundred sixty-three million, eight hundred nineteen thousand, one hundred thirty-six".