2129361843 has 16 divisors (see below), whose sum is σ = 3435609600. Its totient is φ = 1145202816.

The previous prime is 2129361799. The next prime is 2129361847. The reversal of 2129361843 is 3481639212.

It is not a de Polignac number, because 2129361843 - 2⁶ = 2129361779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2129361847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2981943 + ... + 2982656.

It is an arithmetic number, because the mean of its divisors is an integer number (214725600).

Almost surely, 2^2129361843 is an apocalyptic number.

2129361843 is a deficient number, since it is larger than the sum of its proper divisors (1306247757).

2129361843 is a wasteful number, since it uses less digits than its factorization.

2129361843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964626.

The product of its digits is 62208, while the sum is 39.

The square root of 2129361843 is about 46145.0088633646. The cubic root of 2129361843 is about 1286.5198432949.

The spelling of 2129361843 in words is "two billion, one hundred twenty-nine million, three hundred sixty-one thousand, eight hundred forty-three".