2198836095818 has 32 divisors (see below), whose sum is σ = 3572006699664. Its totient is φ = 1011272384512.

The previous prime is 2198836095803. The next prime is 2198836095829. The reversal of 2198836095818 is 8185906388912.

It can be written as a sum of positive squares in 8 ways, for example, as 2198348878489 + 487217329 = 1482683^2 + 22073^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1910855 + ... + 2837082.

Almost surely, 2^{2198836095818} is an apocalyptic number.

2198836095818 is a deficient number, since it is larger than the sum of its proper divisors (1373170603846).

2198836095818 is a wasteful number, since it uses less digits than its factorization.

2198836095818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748266.

The product of its (nonzero) digits is 59719680, while the sum is 68.

The spelling of 2198836095818 in words is "two trillion, one hundred ninety-eight billion, eight hundred thirty-six million, ninety-five thousand, eight hundred eighteen".