204691193288 has 8 divisors (see below), whose sum is σ = 383795987430. Its totient is φ = 102345596640.

The previous prime is 204691193251. The next prime is 204691193299. The reversal of 204691193288 is 882391196402.

It can be written as a sum of positive squares in only one way, i.e., 203092632964 + 1598560324 = 450658^2 + 39982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12793199573 + ... + 12793199588.

Almost surely, 2^204691193288 is an apocalyptic number.

It is an amenable number.

204691193288 is a deficient number, since it is larger than the sum of its proper divisors (179104794142).

204691193288 is a wasteful number, since it uses less digits than its factorization.

204691193288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25586399167 (or 25586399163 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 204691193288 in words is "two hundred four billion, six hundred ninety-one million, one hundred ninety-three thousand, two hundred eighty-eight".