204474748589 has 2 divisors, whose sum is σ = 204474748590. Its totient is φ = 204474748588.

The previous prime is 204474748553. The next prime is 204474748607. The reversal of 204474748589 is 985847474402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142253437225 + 62221311364 = 377165^2 + 249442^2 .

It is a cyclic number.

It is not a de Polignac number, because 204474748589 - 2⁸ = 204474748333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204474744589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102237374294 + 102237374295.

It is an arithmetic number, because the mean of its divisors is an integer number (102237374295).

Almost surely, 2^204474748589 is an apocalyptic number.

It is an amenable number.

204474748589 is a deficient number, since it is larger than the sum of its proper divisors (1).

204474748589 is an equidigital number, since it uses as much as digits as its factorization.

204474748589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72253440, while the sum is 62.

The spelling of 204474748589 in words is "two hundred four billion, four hundred seventy-four million, seven hundred forty-eight thousand, five hundred eighty-nine".