188873980343218 has 8 divisors (see below), whose sum is σ = 283372600063212. Its totient is φ = 94416446988816.

The previous prime is 188873980343207. The next prime is 188873980343221. The reversal of 188873980343218 is 812343089378881.

It can be written as a sum of positive squares in 2 ways, for example, as 167452476957649 + 21421503385569 = 12940343^2 + 4628337^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10271579905 + ... + 10271598292.

Almost surely, 2^{188873980343218} is an apocalyptic number.

188873980343218 is a deficient number, since it is larger than the sum of its proper divisors (94498619719994).

188873980343218 is a wasteful number, since it uses less digits than its factorization.

188873980343218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20543182796.

The product of its (nonzero) digits is 445906944, while the sum is 73.

The spelling of 188873980343218 in words is "one hundred eighty-eight trillion, eight hundred seventy-three billion, nine hundred eighty million, three hundred forty-three thousand, two hundred eighteen".