20002036889 has 2 divisors, whose sum is σ = 20002036890. Its totient is φ = 20002036888.

The previous prime is 20002036849. The next prime is 20002036931. The reversal of 20002036889 is 98863020002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10842015625 + 9160021264 = 104125^2 + 95708^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002036889 - 2¹² = 20002032793 is a prime.

It is a super-3 number, since 3×20002036889³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20002036849) 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 as a sum of consecutive naturals, namely, 10001018444 + 10001018445.

It is an arithmetic number, because the mean of its divisors is an integer number (10001018445).

Almost surely, 2^20002036889 is an apocalyptic number.

It is an amenable number.

20002036889 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002036889 is an equidigital number, since it uses as much as digits as its factorization.

20002036889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 20002036889 in words is "twenty billion, two million, thirty-six thousand, eight hundred eighty-nine".