204199637984 has 24 divisors (see below), whose sum is σ = 402052407120. Its totient is φ = 102091090176.

The previous prime is 204199637947. The next prime is 204199638017. The reversal of 204199637984 is 489736991402.

It is a congruent number.

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, 115892 + ... + 649484.

It is an arithmetic number, because the mean of its divisors is an integer number (16752183630).

Almost surely, 2^204199637984 is an apocalyptic number.

It is an amenable number.

204199637984 is a deficient number, since it is larger than the sum of its proper divisors (197852769136).

204199637984 is a wasteful number, since it uses less digits than its factorization.

204199637984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545562 (or 545554 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 204199637984 in words is "two hundred four billion, one hundred ninety-nine million, six hundred thirty-seven thousand, nine hundred eighty-four".