204865361906 has 8 divisors (see below), whose sum is σ = 314444509104. Its totient is φ = 100050525540.

The previous prime is 204865361773. The next prime is 204865361917. The reversal of 204865361906 is 609163568402.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191077600 + ... + 1191077771.

It is an arithmetic number, because the mean of its divisors is an integer number (39305563638).

Almost surely, 2^204865361906 is an apocalyptic number.

204865361906 is a deficient number, since it is larger than the sum of its proper divisors (109579147198).

204865361906 is a wasteful number, since it uses less digits than its factorization.

204865361906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382155416.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 204865361906 in words is "two hundred four billion, eight hundred sixty-five million, three hundred sixty-one thousand, nine hundred six".