2198899649 has 8 divisors (see below), whose sum is σ = 2232787200. Its totient is φ = 2165114016.

The previous prime is 2198899639. The next prime is 2198899711. The reversal of 2198899649 is 9469988912.

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 2198899649 - 2¹² = 2198895553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2198899639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18584 + ... + 68870.

It is an arithmetic number, because the mean of its divisors is an integer number (279098400).

Almost surely, 2^2198899649 is an apocalyptic number.

It is an amenable number.

2198899649 is a deficient number, since it is larger than the sum of its proper divisors (33887551).

2198899649 is an equidigital number, since it uses as much as digits as its factorization.

2198899649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50959.

The product of its digits is 20155392, while the sum is 65.

The square root of 2198899649 is about 46892.4263501048. The cubic root of 2198899649 is about 1300.3745762818.

The spelling of 2198899649 in words is "two billion, one hundred ninety-eight million, eight hundred ninety-nine thousand, six hundred forty-nine".