20682842873 has 16 divisors (see below), whose sum is σ = 25789577856. Its totient is φ = 16114515840.

The previous prime is 20682842867. The next prime is 20682842893. The reversal of 20682842873 is 37824828602.

It is a cyclic number.

It is not a de Polignac number, because 20682842873 - 2⁴ = 20682842857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20682842893) 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 15 ways as a sum of consecutive naturals, for example, 1091165 + ... + 1109957.

It is an arithmetic number, because the mean of its divisors is an integer number (1611848616).

Almost surely, 2^20682842873 is an apocalyptic number.

It is an amenable number.

20682842873 is a deficient number, since it is larger than the sum of its proper divisors (5106734983).

20682842873 is a wasteful number, since it uses less digits than its factorization.

20682842873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33104.

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 20682842873 in words is "twenty billion, six hundred eighty-two million, eight hundred forty-two thousand, eight hundred seventy-three".