2812780268 has 24 divisors (see below), whose sum is σ = 4939046112. Its totient is φ = 1401634944.

The previous prime is 2812780261. The next prime is 2812780279. The reversal of 2812780268 is 8620872182.

It is not an unprimeable number, because it can be changed into a prime (2812780261) 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, 2820746 + ... + 2821742.

It is an arithmetic number, because the mean of its divisors is an integer number (205793588).

Almost surely, 2^2812780268 is an apocalyptic number.

It is an amenable number.

2812780268 is a deficient number, since it is larger than the sum of its proper divisors (2126265844).

2812780268 is a wasteful number, since it uses less digits than its factorization.

2812780268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 2812780268 is about 53035.6509152099. The cubic root of 2812780268 is about 1411.6009292816.

The spelling of 2812780268 in words is "two billion, eight hundred twelve million, seven hundred eighty thousand, two hundred sixty-eight".