2120098789 has 4 divisors (see below), whose sum is σ = 2169403456. Its totient is φ = 2070794124.

The previous prime is 2120098787. The next prime is 2120098811. The reversal of 2120098789 is 9878900212.

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 2120098789 - 2¹ = 2120098787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120098787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24652269 + ... + 24652354.

It is an arithmetic number, because the mean of its divisors is an integer number (542350864).

Almost surely, 2^2120098789 is an apocalyptic number.

It is an amenable number.

2120098789 is a deficient number, since it is larger than the sum of its proper divisors (49304667).

2120098789 is an equidigital number, since it uses as much as digits as its factorization.

2120098789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49304666.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 2120098789 is about 46044.5305003754. The cubic root of 2120098789 is about 1284.6516114083.

The spelling of 2120098789 in words is "two billion, one hundred twenty million, ninety-eight thousand, seven hundred eighty-nine".