2866809828 has 48 divisors (see below), whose sum is σ = 6931527680. Its totient is φ = 921551904.

The previous prime is 2866809779. The next prime is 2866809853. The reversal of 2866809828 is 8289086682.

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, 5601 + ... + 75927.

Almost surely, 2^2866809828 is an apocalyptic number.

It is an amenable number.

2866809828 is an abundant number, since it is smaller than the sum of its proper divisors (4064717852).

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

2866809828 is a wasteful number, since it uses less digits than its factorization.

2866809828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70456 (or 70454 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 57.

The square root of 2866809828 is about 53542.5982559681. The cubic root of 2866809828 is about 1420.5819587785.

The spelling of 2866809828 in words is "two billion, eight hundred sixty-six million, eight hundred nine thousand, eight hundred twenty-eight".