20336786889 has 24 divisors (see below), whose sum is σ = 27735140160. Its totient is φ = 13254528960.

The previous prime is 20336786887. The next prime is 20336786917. The reversal of 20336786889 is 98868763302.

It is not a de Polignac number, because 20336786889 - 2¹ = 20336786887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20336786881) 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 23 ways as a sum of consecutive naturals, for example, 1858767 + ... + 1869675.

It is an arithmetic number, because the mean of its divisors is an integer number (1155630840).

Almost surely, 2^20336786889 is an apocalyptic number.

It is an amenable number.

20336786889 is a deficient number, since it is larger than the sum of its proper divisors (7398353271).

20336786889 is a wasteful number, since it uses less digits than its factorization.

20336786889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11201 (or 11140 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 20336786889 in words is "twenty billion, three hundred thirty-six million, seven hundred eighty-six thousand, eight hundred eighty-nine".