20592872209 has 16 divisors (see below), whose sum is σ = 25760573440. Its totient is φ = 16026154560.

The previous prime is 20592872203. The next prime is 20592872291. The reversal of 20592872209 is 90227829502.

It is not a de Polignac number, because 20592872209 - 2¹⁵ = 20592839441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20592872203) 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, 1849329 + ... + 1860430.

It is an arithmetic number, because the mean of its divisors is an integer number (1610035840).

Almost surely, 2^20592872209 is an apocalyptic number.

It is an amenable number.

20592872209 is a deficient number, since it is larger than the sum of its proper divisors (5167701231).

20592872209 is a wasteful number, since it uses less digits than its factorization.

20592872209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709840.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 20592872209 in words is "twenty billion, five hundred ninety-two million, eight hundred seventy-two thousand, two hundred nine".