188968209031 has 8 divisors (see below), whose sum is σ = 223410690720. Its totient is φ = 156387483168.

The previous prime is 188968209011. The next prime is 188968209061. The reversal of 188968209031 is 130902869881.

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

It is not a de Polignac number, because 188968209031 - 2⁵ = 188968208999 is a prime.

It is a super-2 number, since 2×188968209031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188968209011) 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, 465438736 + ... + 465439141.

It is an arithmetic number, because the mean of its divisors is an integer number (27926336340).

Almost surely, 2^188968209031 is an apocalyptic number.

188968209031 is a deficient number, since it is larger than the sum of its proper divisors (34442481689).

188968209031 is an equidigital number, since it uses as much as digits as its factorization.

188968209031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930877913.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The spelling of 188968209031 in words is "one hundred eighty-eight billion, nine hundred sixty-eight million, two hundred nine thousand, thirty-one".