3845063077549 has 2 divisors, whose sum is σ = 3845063077550. Its totient is φ = 3845063077548.

The previous prime is 3845063077487. The next prime is 3845063077619. The reversal of 3845063077549 is 9457703605483.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3386402287524 + 458660790025 = 1840218^2 + 677245^2 .

It is a cyclic number.

It is not a de Polignac number, because 3845063077549 - 2⁷ = 3845063077421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3845063077049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922531538774 + 1922531538775.

It is an arithmetic number, because the mean of its divisors is an integer number (1922531538775).

Almost surely, 2^{3845063077549} is an apocalyptic number.

It is an amenable number.

3845063077549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3845063077549 is an equidigital number, since it uses as much as digits as its factorization.

3845063077549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76204800, while the sum is 61.

The spelling of 3845063077549 in words is "three trillion, eight hundred forty-five billion, sixty-three million, seventy-seven thousand, five hundred forty-nine".