3845191844749 has 2 divisors, whose sum is σ = 3845191844750. Its totient is φ = 3845191844748.

The previous prime is 3845191844701. The next prime is 3845191844777. The reversal of 3845191844749 is 9474481915483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2496242002500 + 1348949842249 = 1579950^2 + 1161443^2 .

It is a cyclic number.

It is not a de Polignac number, because 3845191844749 - 2⁷ = 3845191844621 is a prime.

It is a super-4 number, since 4×3845191844749⁴ (a number of 51 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3845191844849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922595922374 + 1922595922375.

It is an arithmetic number, because the mean of its divisors is an integer number (1922595922375).

Almost surely, 2^{3845191844749} is an apocalyptic number.

It is an amenable number.

3845191844749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3845191844749 is an equidigital number, since it uses as much as digits as its factorization.

3845191844749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139345920, while the sum is 67.

The spelling of 3845191844749 in words is "three trillion, eight hundred forty-five billion, one hundred ninety-one million, eight hundred forty-four thousand, seven hundred forty-nine".