2787802112 has 44 divisors (see below), whose sum is σ = 5583495456. Its totient is φ = 1391247360.

The previous prime is 2787802081. The next prime is 2787802117. The reversal of 2787802112 is 2112087872.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2787802117) 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, 604937 + ... + 609527.

It is an arithmetic number, because the mean of its divisors is an integer number (126897624).

Almost surely, 2^2787802112 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 2787802112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2791747728).

2787802112 is an abundant number, since it is smaller than the sum of its proper divisors (2795693344).

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

2787802112 is an equidigital number, since it uses as much as digits as its factorization.

2787802112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204 (or 5186 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 38.

The square root of 2787802112 is about 52799.6412109022. The cubic root of 2787802112 is about 1407.4100489887.

Adding to 2787802112 its reverse (2112087872), we get a palindrome (4899889984).

The spelling of 2787802112 in words is "two billion, seven hundred eighty-seven million, eight hundred two thousand, one hundred twelve".