2798968779 has 12 divisors (see below), whose sum is σ = 4043548600. Its totient is φ = 1865705184.

The previous prime is 2798968747. The next prime is 2798968789. The reversal of 2798968779 is 9778698972.

It is not a de Polignac number, because 2798968779 - 2⁵ = 2798968747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2798968709) 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, 56292 + ... + 93630.

Almost surely, 2^2798968779 is an apocalyptic number.

2798968779 is a deficient number, since it is larger than the sum of its proper divisors (1244579821).

2798968779 is a wasteful number, since it uses less digits than its factorization.

2798968779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45674 (or 45671 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 72.

The square root of 2798968779 is about 52905.2812014075. The cubic root of 2798968779 is about 1409.2866936797.

The spelling of 2798968779 in words is "two billion, seven hundred ninety-eight million, nine hundred sixty-eight thousand, seven hundred seventy-nine".