2129208793 has 4 divisors (see below), whose sum is σ = 2129540560. Its totient is φ = 2128877028.

The previous prime is 2129208791. The next prime is 2129208821. The reversal of 2129208793 is 3978029212.

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 2129208793 - 2¹ = 2129208791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2129208791) 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, 156063 + ... + 169156.

It is an arithmetic number, because the mean of its divisors is an integer number (532385140).

Almost surely, 2^2129208793 is an apocalyptic number.

It is an amenable number.

2129208793 is a deficient number, since it is larger than the sum of its proper divisors (331767).

2129208793 is an equidigital number, since it uses as much as digits as its factorization.

2129208793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331766.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2129208793 is about 46143.3504743641. The cubic root of 2129208793 is about 1286.4890192586.

The spelling of 2129208793 in words is "two billion, one hundred twenty-nine million, two hundred eight thousand, seven hundred ninety-three".