21834329089 has 2 divisors, whose sum is σ = 21834329090. Its totient is φ = 21834329088.

The previous prime is 21834329059. The next prime is 21834329113. The reversal of 21834329089 is 98092343812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19817600625 + 2016728464 = 140775^2 + 44908^2 .

It is a cyclic number.

It is not a de Polignac number, because 21834329089 - 2²³ = 21825940481 is a prime.

It is not a weakly prime, because it can be changed into another prime (21834329059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10917164544 + 10917164545.

It is an arithmetic number, because the mean of its divisors is an integer number (10917164545).

Almost surely, 2^21834329089 is an apocalyptic number.

It is an amenable number.

21834329089 is a deficient number, since it is larger than the sum of its proper divisors (1).

21834329089 is an equidigital number, since it uses as much as digits as its factorization.

21834329089 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 21834329089 in words is "twenty-one billion, eight hundred thirty-four million, three hundred twenty-nine thousand, eighty-nine".