188788122993 has 8 divisors (see below), whose sum is σ = 255474475168. Its totient is φ = 123980259744.

The previous prime is 188788122959. The next prime is 188788123009. The reversal of 188788122993 is 399221887881.

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

It is not a de Polignac number, because 188788122993 - 2¹⁶ = 188788057457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188788120993) 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, 469621996 + ... + 469622397.

It is an arithmetic number, because the mean of its divisors is an integer number (31934309396).

Almost surely, 2^188788122993 is an apocalyptic number.

It is an amenable number.

188788122993 is a deficient number, since it is larger than the sum of its proper divisors (66686352175).

188788122993 is an equidigital number, since it uses as much as digits as its factorization.

188788122993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939244463.

The product of its digits is 27869184, while the sum is 66.

The spelling of 188788122993 in words is "one hundred eighty-eight billion, seven hundred eighty-eight million, one hundred twenty-two thousand, nine hundred ninety-three".