2188701198 has 12 divisors (see below), whose sum is σ = 4742185968. Its totient is φ = 729567060.

The previous prime is 2188701187. The next prime is 2188701271. The reversal of 2188701198 is 8911078812.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60797238 + ... + 60797273.

It is an arithmetic number, because the mean of its divisors is an integer number (395182164).

Almost surely, 2^2188701198 is an apocalyptic number.

2188701198 is an abundant number, since it is smaller than the sum of its proper divisors (2553484770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2188701198 is a wasteful number, since it uses less digits than its factorization.

2188701198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121594519 (or 121594516 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 45.

The square root of 2188701198 is about 46783.5569190715. The cubic root of 2188701198 is about 1298.3610901188.

The spelling of 2188701198 in words is "two billion, one hundred eighty-eight million, seven hundred one thousand, one hundred ninety-eight".