3845717866 has 16 divisors (see below), whose sum is σ = 6129970056. Its totient is φ = 1803211776.

The previous prime is 3845717851. The next prime is 3845717893. The reversal of 3845717866 is 6687175483.

It can be written as a sum of positive squares in 4 ways, for example, as 3840404841 + 5313025 = 61971^2 + 2305^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194751 + ... + 213586.

Almost surely, 2^3845717866 is an apocalyptic number.

3845717866 is a deficient number, since it is larger than the sum of its proper divisors (2284252190).

3845717866 is a wasteful number, since it uses less digits than its factorization.

3845717866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408633.

The product of its digits is 6773760, while the sum is 55.

The square root of 3845717866 is about 62013.8522106150. The cubic root of 3845717866 is about 1566.7239171373.

The spelling of 3845717866 in words is "three billion, eight hundred forty-five million, seven hundred seventeen thousand, eight hundred sixty-six".