200021020989 has 8 divisors (see below), whose sum is σ = 268613362080. Its totient is φ = 132388013616.

The previous prime is 200021020961. The next prime is 200021021047. The reversal of 200021020989 is 989020120002.

It is a happy number.

200021020989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200021020989 - 2¹³ = 200021012797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021020949) 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 7 ways as a sum of consecutive naturals, for example, 239832942 + ... + 239833775.

It is an arithmetic number, because the mean of its divisors is an integer number (33576670260).

Almost surely, 2^200021020989 is an apocalyptic number.

It is an amenable number.

200021020989 is a deficient number, since it is larger than the sum of its proper divisors (68592341091).

200021020989 is a wasteful number, since it uses less digits than its factorization.

200021020989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479666859.

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 200021020989 in words is "two hundred billion, twenty-one million, twenty thousand, nine hundred eighty-nine".