204344245489 has 8 divisors (see below), whose sum is σ = 206010721280. Its totient is φ = 202678667856.

The previous prime is 204344245409. The next prime is 204344245513. The reversal of 204344245489 is 984542443402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204344245489 - 2⁹ = 204344244977 is a prime.

It is a super-4 number, since 4×204344245489⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204344245409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236182 + ... + 681520.

It is an arithmetic number, because the mean of its divisors is an integer number (25751340160).

Almost surely, 2^204344245489 is an apocalyptic number.

It is an amenable number.

204344245489 is a deficient number, since it is larger than the sum of its proper divisors (1666475791).

204344245489 is a wasteful number, since it uses less digits than its factorization.

204344245489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449079.

The product of its (nonzero) digits is 4423680, while the sum is 49.

The spelling of 204344245489 in words is "two hundred four billion, three hundred forty-four million, two hundred forty-five thousand, four hundred eighty-nine".