2129208794 has 16 divisors (see below), whose sum is σ = 3235105440. Its totient is φ = 1050862800.

The previous prime is 2129208791. The next prime is 2129208821. The reversal of 2129208794 is 4978029212.

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 7 ways as a sum of consecutive naturals, for example, 211037 + ... + 220895.

It is an arithmetic number, because the mean of its divisors is an integer number (202194090).

Almost surely, 2^2129208794 is an apocalyptic number.

2129208794 is a deficient number, since it is larger than the sum of its proper divisors (1105896646).

2129208794 is a wasteful number, since it uses less digits than its factorization.

2129208794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11245.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2129208794 is about 46143.3504851999. The cubic root of 2129208794 is about 1286.4890194600.

The spelling of 2129208794 in words is "two billion, one hundred twenty-nine million, two hundred eight thousand, seven hundred ninety-four".