3785813789 has 2 divisors, whose sum is σ = 3785813790. Its totient is φ = 3785813788.

The previous prime is 3785813771. The next prime is 3785813819. The reversal of 3785813789 is 9873185873.

3785813789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3768732100 + 17081689 = 61390^2 + 4133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3785813789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3785813189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1892906894 + 1892906895.

It is an arithmetic number, because the mean of its divisors is an integer number (1892906895).

Almost surely, 2^3785813789 is an apocalyptic number.

It is an amenable number.

3785813789 is a deficient number, since it is larger than the sum of its proper divisors (1).

3785813789 is an equidigital number, since it uses as much as digits as its factorization.

3785813789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 59.

The square root of 3785813789 is about 61528.9670724286. The cubic root of 3785813789 is about 1558.5464475260.

The spelling of 3785813789 in words is "three billion, seven hundred eighty-five million, eight hundred thirteen thousand, seven hundred eighty-nine".