188851984139 has 8 divisors (see below), whose sum is σ = 232433211360. Its totient is φ = 149421350016.

The previous prime is 188851984129. The next prime is 188851984151. The reversal of 188851984139 is 931489158881.

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 188851984139 - 2¹⁶ = 188851918603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188851984129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037648174 + ... + 1037648355.

It is an arithmetic number, because the mean of its divisors is an integer number (29054151420).

Almost surely, 2^188851984139 is an apocalyptic number.

188851984139 is a deficient number, since it is larger than the sum of its proper divisors (43581227221).

188851984139 is a wasteful number, since it uses less digits than its factorization.

188851984139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075296549.

The product of its digits is 19906560, while the sum is 65.

The spelling of 188851984139 in words is "one hundred eighty-eight billion, eight hundred fifty-one million, nine hundred eighty-four thousand, one hundred thirty-nine".