204380496285 has 64 divisors (see below), whose sum is σ = 386947497984. Its totient is φ = 90143539200.

The previous prime is 204380496209. The next prime is 204380496317. The reversal of 204380496285 is 582694083402.

It is a happy number.

It is not a de Polignac number, because 204380496285 - 2⁹ = 204380495773 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 982557 + ... + 1172253.

It is an arithmetic number, because the mean of its divisors is an integer number (6046054656).

Almost surely, 2^204380496285 is an apocalyptic number.

It is an amenable number.

204380496285 is a deficient number, since it is larger than the sum of its proper divisors (182567001699).

204380496285 is a wasteful number, since it uses less digits than its factorization.

204380496285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190074.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 204380496285 in words is "two hundred four billion, three hundred eighty million, four hundred ninety-six thousand, two hundred eighty-five".