2198686686902 has 8 divisors (see below), whose sum is σ = 3298065028200. Its totient is φ = 1099331677504.

The previous prime is 2198686686899. The next prime is 2198686686913. The reversal of 2198686686902 is 2096866868912.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5595452 + ... + 5975487.

It is an arithmetic number, because the mean of its divisors is an integer number (412258128525).

Almost surely, 2^{2198686686902} is an apocalyptic number.

2198686686902 is a deficient number, since it is larger than the sum of its proper divisors (1099378341298).

2198686686902 is a wasteful number, since it uses less digits than its factorization.

2198686686902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11665950.

The product of its (nonzero) digits is 214990848, while the sum is 71.

The spelling of 2198686686902 in words is "two trillion, one hundred ninety-eight billion, six hundred eighty-six million, six hundred eighty-six thousand, nine hundred two".