4685685509 has 4 divisors (see below), whose sum is σ = 4686101760. Its totient is φ = 4685269260.

The previous prime is 4685685497. The next prime is 4685685523. The reversal of 4685685509 is 9055865864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4685685509 - 2²⁸ = 4417250053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4685685409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190757 + ... + 213914.

It is an arithmetic number, because the mean of its divisors is an integer number (1171525440).

Almost surely, 2^4685685509 is an apocalyptic number.

It is an amenable number.

4685685509 is a deficient number, since it is larger than the sum of its proper divisors (416251).

4685685509 is a wasteful number, since it uses less digits than its factorization.

4685685509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416250.

The product of its (nonzero) digits is 10368000, while the sum is 56.

The square root of 4685685509 is about 68452.0672368629. The cubic root of 4685685509 is about 1673.3664042139.

The spelling of 4685685509 in words is "four billion, six hundred eighty-five million, six hundred eighty-five thousand, five hundred nine".