2678769216 has 84 divisors (see below), whose sum is σ = 7885790172. Its totient is φ = 868783104.

The previous prime is 2678769211. The next prime is 2678769227. The reversal of 2678769216 is 6129678762.

It can be written as a sum of positive squares in 2 ways, for example, as 2125578816 + 553190400 = 46104^2 + 23520^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2678769211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41535 + ... + 84158.

Almost surely, 2^2678769216 is an apocalyptic number.

It is an amenable number.

2678769216 is an abundant number, since it is smaller than the sum of its proper divisors (5207020956).

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

2678769216 is a wasteful number, since it uses less digits than its factorization.

2678769216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125748 (or 125735 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 2678769216 is about 51756.8277234994. The cubic root of 2678769216 is about 1388.8172427549.

The spelling of 2678769216 in words is "two billion, six hundred seventy-eight million, seven hundred sixty-nine thousand, two hundred sixteen".