204449048021 has 8 divisors (see below), whose sum is σ = 205103905344. Its totient is φ = 203794476480.

The previous prime is 204449048003. The next prime is 204449048093. The reversal of 204449048021 is 120840944402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204449048021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204449048521) 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, 1410686 + ... + 1548848.

It is an arithmetic number, because the mean of its divisors is an integer number (25637988168).

Almost surely, 2^204449048021 is an apocalyptic number.

It is an amenable number.

204449048021 is a deficient number, since it is larger than the sum of its proper divisors (654857323).

204449048021 is a wasteful number, since it uses less digits than its factorization.

204449048021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142891.

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 204449048021 in words is "two hundred four billion, four hundred forty-nine million, forty-eight thousand, twenty-one".