204102061249 has 8 divisors (see below), whose sum is σ = 215975728512. Its totient is φ = 192478366080.

The previous prime is 204102061237. The next prime is 204102061279. The reversal of 204102061249 is 942160201402.

204102061249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 204102061249 - 2¹¹ = 204102059201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204102061249.

It is not an unprimeable number, because it can be changed into a prime (204102061279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62491344 + ... + 62494609.

It is an arithmetic number, because the mean of its divisors is an integer number (26996966064).

Almost surely, 2^204102061249 is an apocalyptic number.

It is an amenable number.

204102061249 is a deficient number, since it is larger than the sum of its proper divisors (11873667263).

204102061249 is a wasteful number, since it uses less digits than its factorization.

204102061249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124986047.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 204102061249 in words is "two hundred four billion, one hundred two million, sixty-one thousand, two hundred forty-nine".