2798878559 has 2 divisors, whose sum is σ = 2798878560. Its totient is φ = 2798878558.

The previous prime is 2798878553. The next prime is 2798878583. The reversal of 2798878559 is 9558788972.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2798878559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2798878553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399439279 + 1399439280.

It is an arithmetic number, because the mean of its divisors is an integer number (1399439280).

Almost surely, 2^2798878559 is an apocalyptic number.

2798878559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2798878559 is an equidigital number, since it uses as much as digits as its factorization.

2798878559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 101606400, while the sum is 68.

The square root of 2798878559 is about 52904.4285386394. The cubic root of 2798878559 is about 1409.2715515302.

The spelling of 2798878559 in words is "two billion, seven hundred ninety-eight million, eight hundred seventy-eight thousand, five hundred fifty-nine".