3927385385149 has 2 divisors, whose sum is σ = 3927385385150. Its totient is φ = 3927385385148.

The previous prime is 3927385385071. The next prime is 3927385385167. The reversal of 3927385385149 is 9415835837293.

3927385385149 is digitally balanced in base 2, 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., 2387775929049 + 1539609456100 = 1545243^2 + 1240810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3927385385149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3927385389149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1963692692574 + 1963692692575.

It is an arithmetic number, because the mean of its divisors is an integer number (1963692692575).

Almost surely, 2^{3927385385149} is an apocalyptic number.

It is an amenable number.

3927385385149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3927385385149 is an equidigital number, since it uses as much as digits as its factorization.

3927385385149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 195955200, while the sum is 67.

The spelling of 3927385385149 in words is "three trillion, nine hundred twenty-seven billion, three hundred eighty-five million, three hundred eighty-five thousand, one hundred forty-nine".