3886666816 has 14 divisors (see below), whose sum is σ = 7712604590. Its totient is φ = 1943333376.

The previous prime is 3886666801. The next prime is 3886666853. The reversal of 3886666816 is 6186666883.

It can be written as a sum of positive squares in only one way, i.e., 3682062400 + 204604416 = 60680^2 + 14304^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30364521 + ... + 30364648.

Almost surely, 2^3886666816 is an apocalyptic number.

It is an amenable number.

3886666816 is a deficient number, since it is larger than the sum of its proper divisors (3825937774).

3886666816 is an equidigital number, since it uses as much as digits as its factorization.

3886666816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60729181 (or 60729171 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 58.

The square root of 3886666816 is about 62343.1376817048. The cubic root of 3886666816 is about 1572.2650870437.

The spelling of 3886666816 in words is "three billion, eight hundred eighty-six million, six hundred sixty-six thousand, eight hundred sixteen".