2129688796 has 12 divisors (see below), whose sum is σ = 3923111080. Its totient is φ = 1008799920.

The previous prime is 2129688763. The next prime is 2129688797. The reversal of 2129688796 is 6978869212.

It is a self number, because there is not a number n which added to its sum of digits gives 2129688796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129688797) 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, 14011035 + ... + 14011186.

Almost surely, 2^2129688796 is an apocalyptic number.

It is an amenable number.

2129688796 is a deficient number, since it is larger than the sum of its proper divisors (1793422284).

2129688796 is a wasteful number, since it uses less digits than its factorization.

2129688796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28022244 (or 28022242 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The square root of 2129688796 is about 46148.5513965498. The cubic root of 2129688796 is about 1286.5856861822.

The spelling of 2129688796 in words is "two billion, one hundred twenty-nine million, six hundred eighty-eight thousand, seven hundred ninety-six".