20368029589 has 2 divisors, whose sum is σ = 20368029590. Its totient is φ = 20368029588.

The previous prime is 20368029529. The next prime is 20368029599. The reversal of 20368029589 is 98592086302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11964640689 + 8403388900 = 109383^2 + 91670^2 .

It is a cyclic number.

It is not a de Polignac number, because 20368029589 - 2¹⁷ = 20367898517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20368029529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10184014794 + 10184014795.

It is an arithmetic number, because the mean of its divisors is an integer number (10184014795).

Almost surely, 2^20368029589 is an apocalyptic number.

It is an amenable number.

20368029589 is a deficient number, since it is larger than the sum of its proper divisors (1).

20368029589 is an equidigital number, since it uses as much as digits as its factorization.

20368029589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 20368029589 in words is "twenty billion, three hundred sixty-eight million, twenty-nine thousand, five hundred eighty-nine".