204234440089 has 2 divisors, whose sum is σ = 204234440090. Its totient is φ = 204234440088.

The previous prime is 204234440077. The next prime is 204234440117. The reversal of 204234440089 is 980044432402.

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., 162263952400 + 41970487689 = 402820^2 + 204867^2 .

It is a cyclic number.

It is not a de Polignac number, because 204234440089 - 2⁵ = 204234440057 is a prime.

It is not a weakly prime, because it can be changed into another prime (204234440029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102117220044 + 102117220045.

It is an arithmetic number, because the mean of its divisors is an integer number (102117220045).

Almost surely, 2^204234440089 is an apocalyptic number.

It is an amenable number.

204234440089 is a deficient number, since it is larger than the sum of its proper divisors (1).

204234440089 is an equidigital number, since it uses as much as digits as its factorization.

204234440089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 204234440089 in words is "two hundred four billion, two hundred thirty-four million, four hundred forty thousand, eighty-nine".