204363380856 has 32 divisors (see below), whose sum is σ = 511194142800. Its totient is φ = 68083034880.

The previous prime is 204363380843. The next prime is 204363380861. The reversal of 204363380856 is 658083363402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336925 + ... + 2422796.

Almost surely, 2^204363380856 is an apocalyptic number.

It is an amenable number.

204363380856 is an abundant number, since it is smaller than the sum of its proper divisors (306830761944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204363380856 is a wasteful number, since it uses less digits than its factorization.

204363380856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761519 (or 4761515 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 204363380856 in words is "two hundred four billion, three hundred sixty-three million, three hundred eighty thousand, eight hundred fifty-six".