20046039889 has 32 divisors (see below), whose sum is σ = 22957240320. Its totient is φ = 17386622208.

The previous prime is 20046039887. The next prime is 20046039911. The reversal of 20046039889 is 98893064002.

It is a cyclic number.

It is not a de Polignac number, because 20046039889 - 2¹ = 20046039887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20046039887) 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 31 ways as a sum of consecutive naturals, for example, 2531274 + ... + 2539180.

It is an arithmetic number, because the mean of its divisors is an integer number (717413760).

Almost surely, 2^20046039889 is an apocalyptic number.

It is an amenable number.

20046039889 is a deficient number, since it is larger than the sum of its proper divisors (2911200431).

20046039889 is a wasteful number, since it uses less digits than its factorization.

20046039889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 20046039889 in words is "twenty billion, forty-six million, thirty-nine thousand, eight hundred eighty-nine".