2808797312 has 16 divisors (see below), whose sum is σ = 5595651150. Its totient is φ = 1404398592.

The previous prime is 2808797311. The next prime is 2808797351. The reversal of 2808797312 is 2137978082.

It can be written as a sum of positive squares in only one way, i.e., 2230106176 + 578691136 = 47224^2 + 24056^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (2808797311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10971737 + ... + 10971992.

Almost surely, 2^2808797312 is an apocalyptic number.

It is an amenable number.

2808797312 is a deficient number, since it is larger than the sum of its proper divisors (2786853838).

2808797312 is an equidigital number, since it uses as much as digits as its factorization.

2808797312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21943743 (or 21943731 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 2808797312 is about 52998.0878145618. The cubic root of 2808797312 is about 1410.9343290107.

The spelling of 2808797312 in words is "two billion, eight hundred eight million, seven hundred ninety-seven thousand, three hundred twelve".