3963994993693 has 8 divisors (see below), whose sum is σ = 4531983767360. Its totient is φ = 3396432163680.

The previous prime is 3963994993691. The next prime is 3963994993703.

3963994993693 is nontrivially palindromic in base 10.

3963994993693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3963994993693 - 2¹ = 3963994993691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3963994993691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106465968 + ... + 106503193.

It is an arithmetic number, because the mean of its divisors is an integer number (566497970920).

Almost surely, 2^{3963994993693} is an apocalyptic number.

It is an amenable number.

3963994993693 is a deficient number, since it is larger than the sum of its proper divisors (567988773667).

3963994993693 is a wasteful number, since it uses less digits than its factorization.

3963994993693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212971827.

The product of its digits is 6198727824, while the sum is 82.

The spelling of 3963994993693 in words is "three trillion, nine hundred sixty-three billion, nine hundred ninety-four million, nine hundred ninety-three thousand, six hundred ninety-three".