2798998868 has 12 divisors (see below), whose sum is σ = 4908969492. Its totient is φ = 1396436160.

The previous prime is 2798998843. The next prime is 2798998877. The reversal of 2798998868 is 8688998972.

2798998868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2376367504 + 422631364 = 48748^2 + 20558^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2798998795 and 2798998804.

It is a congruent number.

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, 763763 + ... + 767418.

It is an arithmetic number, because the mean of its divisors is an integer number (409080791).

Almost surely, 2^2798998868 is an apocalyptic number.

It is an amenable number.

2798998868 is a deficient number, since it is larger than the sum of its proper divisors (2109970624).

2798998868 is a wasteful number, since it uses less digits than its factorization.

2798998868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531642 (or 1531640 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 74.

The square root of 2798998868 is about 52905.5655673389. The cubic root of 2798998868 is about 1409.2917436200.

The spelling of 2798998868 in words is "two billion, seven hundred ninety-eight million, nine hundred ninety-eight thousand, eight hundred sixty-eight".