3686868739 has 2 divisors, whose sum is σ = 3686868740. Its totient is φ = 3686868738.

The previous prime is 3686868683. The next prime is 3686868791. The reversal of 3686868739 is 9378686863.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3686868739 - 2¹¹ = 3686866691 is a prime.

It is not a weakly prime, because it can be changed into another prime (3686868439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1843434369 + 1843434370.

It is an arithmetic number, because the mean of its divisors is an integer number (1843434370).

Almost surely, 2^3686868739 is an apocalyptic number.

3686868739 is a deficient number, since it is larger than the sum of its proper divisors (1).

3686868739 is an equidigital number, since it uses as much as digits as its factorization.

3686868739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62705664, while the sum is 64.

The square root of 3686868739 is about 60719.5910641697. The cubic root of 3686868739 is about 1544.8484874970.

The spelling of 3686868739 in words is "three billion, six hundred eighty-six million, eight hundred sixty-eight thousand, seven hundred thirty-nine".