2129564326 has 16 divisors (see below), whose sum is σ = 3225029904. Its totient is φ = 1054568704.

The previous prime is 2129564323. The next prime is 2129564357. The reversal of 2129564326 is 6234659212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129564323) 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 7 ways as a sum of consecutive naturals, for example, 401226 + ... + 406498.

It is an arithmetic number, because the mean of its divisors is an integer number (201564369).

Almost surely, 2^2129564326 is an apocalyptic number.

2129564326 is a deficient number, since it is larger than the sum of its proper divisors (1095465578).

2129564326 is a wasteful number, since it uses less digits than its factorization.

2129564326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175.

The product of its digits is 155520, while the sum is 40.

The square root of 2129564326 is about 46147.2027971360. The cubic root of 2129564326 is about 1286.5606207922.

The spelling of 2129564326 in words is "two billion, one hundred twenty-nine million, five hundred sixty-four thousand, three hundred twenty-six".