2164636123773 has 4 divisors (see below), whose sum is σ = 2886181498368. Its totient is φ = 1443090749180.

The previous prime is 2164636123751. The next prime is 2164636123801. The reversal of 2164636123773 is 3773216364612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2164636123773 - 2⁶ = 2164636123709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164636123973) 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, 360772687293 + ... + 360772687298.

It is an arithmetic number, because the mean of its divisors is an integer number (721545374592).

Almost surely, 2^{2164636123773} is an apocalyptic number.

It is an amenable number.

2164636123773 is a deficient number, since it is larger than the sum of its proper divisors (721545374595).

2164636123773 is an equidigital number, since it uses as much as digits as its factorization.

2164636123773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721545374594.

The product of its digits is 4572288, while the sum is 51.

The spelling of 2164636123773 in words is "two trillion, one hundred sixty-four billion, six hundred thirty-six million, one hundred twenty-three thousand, seven hundred seventy-three".