2798685563 has 8 divisors (see below), whose sum is σ = 2931150336. Its totient is φ = 2667119400.

The previous prime is 2798685557. The next prime is 2798685599. The reversal of 2798685563 is 3655868972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2798685563 - 2⁶ = 2798685499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2798685553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218273 + ... + 230738.

It is an arithmetic number, because the mean of its divisors is an integer number (366393792).

Almost surely, 2^2798685563 is an apocalyptic number.

2798685563 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2798685563 is a deficient number, since it is larger than the sum of its proper divisors (132464773).

2798685563 is a wasteful number, since it uses less digits than its factorization.

2798685563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449305.

The product of its digits is 21772800, while the sum is 59.

The square root of 2798685563 is about 52902.6045011018. The cubic root of 2798685563 is about 1409.2391587916.

The spelling of 2798685563 in words is "two billion, seven hundred ninety-eight million, six hundred eighty-five thousand, five hundred sixty-three".