20839204329 has 8 divisors (see below), whose sum is σ = 27786859200. Its totient is φ = 13892176176.

The previous prime is 20839204297. The next prime is 20839204339. The reversal of 20839204329 is 92340293802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20839204329 - 2⁵ = 20839204297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20839204339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72654 + ... + 216695.

It is an arithmetic number, because the mean of its divisors is an integer number (3473357400).

Almost surely, 2^20839204329 is an apocalyptic number.

It is an amenable number.

20839204329 is a deficient number, since it is larger than the sum of its proper divisors (6947654871).

20839204329 is a wasteful number, since it uses less digits than its factorization.

20839204329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313359.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 20839204329 in words is "twenty billion, eight hundred thirty-nine million, two hundred four thousand, three hundred twenty-nine".