2321179989 has 4 divisors (see below), whose sum is σ = 3094906656. Its totient is φ = 1547453324.

The previous prime is 2321179967. The next prime is 2321179999. The reversal of 2321179989 is 9899711232.

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 2321179989 - 2²⁰ = 2320131413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321179999) 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, 386863329 + ... + 386863334.

It is an arithmetic number, because the mean of its divisors is an integer number (773726664).

Almost surely, 2^2321179989 is an apocalyptic number.

It is an amenable number.

2321179989 is a deficient number, since it is larger than the sum of its proper divisors (773726667).

2321179989 is an equidigital number, since it uses as much as digits as its factorization.

2321179989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773726666.

The product of its digits is 489888, while the sum is 51.

The square root of 2321179989 is about 48178.6258521349. The cubic root of 2321179989 is about 1324.0455904215.

The spelling of 2321179989 in words is "two billion, three hundred twenty-one million, one hundred seventy-nine thousand, nine hundred eighty-nine".