2129202047 has 12 divisors (see below), whose sum is σ = 2556726336. Its totient is φ = 1766157120.

The previous prime is 2129201999. The next prime is 2129202079. The reversal of 2129202047 is 7402029212.

It is not a de Polignac number, because 2129202047 - 2²⁰ = 2128153471 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 (2129202347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 699338 + ... + 702375.

It is an arithmetic number, because the mean of its divisors is an integer number (213060528).

Almost surely, 2^2129202047 is an apocalyptic number.

2129202047 is a deficient number, since it is larger than the sum of its proper divisors (427524289).

2129202047 is a wasteful number, since it uses less digits than its factorization.

2129202047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401758 (or 1401751 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2129202047 is about 46143.2773760165. The cubic root of 2129202047 is about 1286.4876605906.

The spelling of 2129202047 in words is "two billion, one hundred twenty-nine million, two hundred two thousand, forty-seven".