3969858589693 has 2 divisors, whose sum is σ = 3969858589694. Its totient is φ = 3969858589692.

The previous prime is 3969858589667. The next prime is 3969858589709.

It is a happy number.

3969858589693 is nontrivially palindromic in base 10.

3969858589693 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2449466015929 + 1520392573764 = 1565077^2 + 1233042^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3969858589693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3969858589663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984929294846 + 1984929294847.

It is an arithmetic number, because the mean of its divisors is an integer number (1984929294847).

Almost surely, 2^{3969858589693} is an apocalyptic number.

It is an amenable number.

3969858589693 is a deficient number, since it is larger than the sum of its proper divisors (1).

3969858589693 is an equidigital number, since it uses as much as digits as its factorization.

3969858589693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27209779200, while the sum is 88.

The spelling of 3969858589693 in words is "three trillion, nine hundred sixty-nine billion, eight hundred fifty-eight million, five hundred eighty-nine thousand, six hundred ninety-three".