3968978798693 has 16 divisors (see below), whose sum is σ = 4110137531136. Its totient is φ = 3830362798080.

The previous prime is 3968978798669. The next prime is 3968978798773.

3968978798693 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 3968978798693 - 2¹⁰ = 3968978797669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968978798093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056005 + ... + 3008837.

It is an arithmetic number, because the mean of its divisors is an integer number (256883595696).

Almost surely, 2^{3968978798693} is an apocalyptic number.

It is an amenable number.

3968978798693 is a deficient number, since it is larger than the sum of its proper divisors (141158732443).

3968978798693 is a wasteful number, since it uses less digits than its factorization.

3968978798693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953484.

The product of its digits is 53331167232, while the sum is 92.

The spelling of 3968978798693 in words is "three trillion, nine hundred sixty-eight billion, nine hundred seventy-eight million, seven hundred ninety-eight thousand, six hundred ninety-three".