4139989566 has 32 divisors (see below), whose sum is σ = 8770083840. Its totient is φ = 1298368896.

The previous prime is 4139989547. The next prime is 4139989573. The reversal of 4139989566 is 6659899314.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405715 + ... + 415793.

It is an arithmetic number, because the mean of its divisors is an integer number (274065120).

Almost surely, 2^4139989566 is an apocalyptic number.

4139989566 is an abundant number, since it is smaller than the sum of its proper divisors (4630094274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4139989566 is a wasteful number, since it uses less digits than its factorization.

4139989566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14128.

The product of its digits is 12597120, while the sum is 60.

The square root of 4139989566 is about 64342.7506872375. The cubic root of 4139989566 is about 1605.7074246796.

The spelling of 4139989566 in words is "four billion, one hundred thirty-nine million, nine hundred eighty-nine thousand, five hundred sixty-six".