4861685217 has 16 divisors (see below), whose sum is σ = 6649896960. Its totient is φ = 3157918032.

The previous prime is 4861685209. The next prime is 4861685233. The reversal of 4861685217 is 7125861684.

It is not a de Polignac number, because 4861685217 - 2³ = 4861685209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4861685207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45867 + ... + 108752.

It is an arithmetic number, because the mean of its divisors is an integer number (415618560).

Almost surely, 2^4861685217 is an apocalyptic number.

4861685217 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

4861685217 is a deficient number, since it is larger than the sum of its proper divisors (1788211743).

4861685217 is a wasteful number, since it uses less digits than its factorization.

4861685217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154892.

The product of its digits is 645120, while the sum is 48.

The square root of 4861685217 is about 69725.7858829859. The cubic root of 4861685217 is about 1694.0606133006.

The spelling of 4861685217 in words is "four billion, eight hundred sixty-one million, six hundred eighty-five thousand, two hundred seventeen".