2164188489927 has 4 divisors (see below), whose sum is σ = 2885584653240. Its totient is φ = 1442792326616.

The previous prime is 2164188489919. The next prime is 2164188489937. The reversal of 2164188489927 is 7299848814612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2164188489927 - 2³ = 2164188489919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164188489937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360698081652 + ... + 360698081657.

It is an arithmetic number, because the mean of its divisors is an integer number (721396163310).

Almost surely, 2^{2164188489927} is an apocalyptic number.

2164188489927 is a deficient number, since it is larger than the sum of its proper divisors (721396163313).

2164188489927 is an equidigital number, since it uses as much as digits as its factorization.

2164188489927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721396163312.

The product of its digits is 111476736, while the sum is 69.

The spelling of 2164188489927 in words is "two trillion, one hundred sixty-four billion, one hundred eighty-eight million, four hundred eighty-nine thousand, nine hundred twenty-seven".