4861709566 has 16 divisors (see below), whose sum is σ = 8412253056. Its totient is φ = 2064116376.

The previous prime is 4861709561. The next prime is 4861709581. The reversal of 4861709566 is 6659071684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4861709561) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1621236 + ... + 1624231.

It is an arithmetic number, because the mean of its divisors is an integer number (525765816).

Almost surely, 2^4861709566 is an apocalyptic number.

4861709566 is a deficient number, since it is larger than the sum of its proper divisors (3550543490).

4861709566 is a wasteful number, since it uses less digits than its factorization.

4861709566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245583.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 4861709566 is about 69725.9604881855. The cubic root of 4861709566 is about 1694.0634414429.

The spelling of 4861709566 in words is "four billion, eight hundred sixty-one million, seven hundred nine thousand, five hundred sixty-six".