204685843848 has 32 divisors (see below), whose sum is σ = 511808949600. Its totient is φ = 68216035968.

The previous prime is 204685843847. The next prime is 204685843849. The reversal of 204685843848 is 848348586402.

It is an interprime number because it is at equal distance from previous prime (204685843847) and next prime (204685843849).

It is a junction number, because it is equal to n+sod(n) for n = 204685843791 and 204685843800.

It is not an unprimeable number, because it can be changed into a prime (204685843847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652813 + ... + 914076.

It is an arithmetic number, because the mean of its divisors is an integer number (15994029675).

Almost surely, 2^204685843848 is an apocalyptic number.

It is an amenable number.

204685843848 is an abundant number, since it is smaller than the sum of its proper divisors (307123105752).

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

204685843848 is a wasteful number, since it uses less digits than its factorization.

204685843848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572341 (or 1572337 counting only the distinct ones).

The product of its (nonzero) digits is 47185920, while the sum is 60.

The spelling of 204685843848 in words is "two hundred four billion, six hundred eighty-five million, eight hundred forty-three thousand, eight hundred forty-eight".