2885685789 has 8 divisors (see below), whose sum is σ = 4397235520. Its totient is φ = 1648963296.

The previous prime is 2885685773. The next prime is 2885685793. The reversal of 2885685789 is 9875865882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2885685789 - 2⁴ = 2885685773 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 (2885685709) 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, 68706784 + ... + 68706825.

It is an arithmetic number, because the mean of its divisors is an integer number (549654440).

Almost surely, 2^2885685789 is an apocalyptic number.

It is an amenable number.

2885685789 is a deficient number, since it is larger than the sum of its proper divisors (1511549731).

2885685789 is a wasteful number, since it uses less digits than its factorization.

2885685789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137413619.

The product of its digits is 77414400, while the sum is 66.

The square root of 2885685789 is about 53718.5795512130. The cubic root of 2885685789 is about 1423.6929908059.

The spelling of 2885685789 in words is "two billion, eight hundred eighty-five million, six hundred eighty-five thousand, seven hundred eighty-nine".