2787716768 has 12 divisors (see below), whose sum is σ = 5488317450. Its totient is φ = 1393858368.

The previous prime is 2787716761. The next prime is 2787716837. The reversal of 2787716768 is 8676177872.

It can be written as a sum of positive squares in only one way, i.e., 2557527184 + 230189584 = 50572^2 + 15172^2 .

It is not an unprimeable number, because it can be changed into a prime (2787716761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43558043 + ... + 43558106.

Almost surely, 2^2787716768 is an apocalyptic number.

It is an amenable number.

2787716768 is a deficient number, since it is larger than the sum of its proper divisors (2700600682).

2787716768 is an equidigital number, since it uses as much as digits as its factorization.

2787716768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87116159 (or 87116151 counting only the distinct ones).

The product of its digits is 11063808, while the sum is 59.

The square root of 2787716768 is about 52798.8330174067. The cubic root of 2787716768 is about 1407.3956869903.

The spelling of 2787716768 in words is "two billion, seven hundred eighty-seven million, seven hundred sixteen thousand, seven hundred sixty-eight".