20427042206 has 32 divisors (see below), whose sum is σ = 32763709440. Its totient is φ = 9518137216.

The previous prime is 20427042203. The next prime is 20427042217. The reversal of 20427042206 is 60224072402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20427042203) 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 15 ways as a sum of consecutive naturals, for example, 1486475 + ... + 1500153.

It is an arithmetic number, because the mean of its divisors is an integer number (1023865920).

Almost surely, 2^20427042206 is an apocalyptic number.

20427042206 is a deficient number, since it is larger than the sum of its proper divisors (12336667234).

20427042206 is a wasteful number, since it uses less digits than its factorization.

20427042206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14128.

The product of its (nonzero) digits is 10752, while the sum is 29.

The spelling of 20427042206 in words is "twenty billion, four hundred twenty-seven million, forty-two thousand, two hundred six".