2785788912 has 80 divisors (see below), whose sum is σ = 7646965920. Its totient is φ = 873899008.

The previous prime is 2785788869. The next prime is 2785788947. The reversal of 2785788912 is 2198875872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229918 + ... + 241730.

It is an arithmetic number, because the mean of its divisors is an integer number (95587074).

Almost surely, 2^2785788912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2785788912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3823482960).

2785788912 is an abundant number, since it is smaller than the sum of its proper divisors (4861177008).

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

2785788912 is a wasteful number, since it uses less digits than its factorization.

2785788912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11875 (or 11835 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 57.

The square root of 2785788912 is about 52780.5732443292. The cubic root of 2785788912 is about 1407.0711822504.

The spelling of 2785788912 in words is "two billion, seven hundred eighty-five million, seven hundred eighty-eight thousand, nine hundred twelve".