2791780268 has 12 divisors (see below), whose sum is σ = 5043216192. Its totient is φ = 1350861360.

The previous prime is 2791780153. The next prime is 2791780291. The reversal of 2791780268 is 8620871972.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11257055 + ... + 11257302.

It is an arithmetic number, because the mean of its divisors is an integer number (420268016).

Almost surely, 2^2791780268 is an apocalyptic number.

It is an amenable number.

2791780268 is a deficient number, since it is larger than the sum of its proper divisors (2251435924).

2791780268 is a wasteful number, since it uses less digits than its factorization.

2791780268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22514392 (or 22514390 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 2791780268 is about 52837.2999688667. The cubic root of 2791780268 is about 1408.0791825250.

The spelling of 2791780268 in words is "two billion, seven hundred ninety-one million, seven hundred eighty thousand, two hundred sixty-eight".