3866809982 has 16 divisors (see below), whose sum is σ = 6629707872. Its totient is φ = 1656981600.

The previous prime is 3866809981. The next prime is 3866810009. The reversal of 3866809982 is 2899086683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866809981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130808 + ... + 157620.

It is an arithmetic number, because the mean of its divisors is an integer number (414356742).

Almost surely, 2^3866809982 is an apocalyptic number.

3866809982 is a deficient number, since it is larger than the sum of its proper divisors (2762897890).

3866809982 is a wasteful number, since it uses less digits than its factorization.

3866809982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37123.

The product of its (nonzero) digits is 8957952, while the sum is 59.

The square root of 3866809982 is about 62183.6793861540. The cubic root of 3866809982 is about 1569.5829665739.

The spelling of 3866809982 in words is "three billion, eight hundred sixty-six million, eight hundred nine thousand, nine hundred eighty-two".