204543525042 has 24 divisors (see below), whose sum is σ = 444602658240. Its totient is φ = 67961941080.

The previous prime is 204543525041. The next prime is 204543525061. The reversal of 204543525042 is 240525345402.

204543525042 is a `hidden beast` number, since 20 + 4 + 543 + 5 + 2 + 50 + 42 = 666.

It is a super-2 number, since 2×204543525042² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204543524988 and 204543525006.

It is not an unprimeable number, because it can be changed into a prime (204543525041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18263742 + ... + 18274937.

It is an arithmetic number, because the mean of its divisors is an integer number (18525110760).

Almost surely, 2^204543525042 is an apocalyptic number.

204543525042 is an abundant number, since it is smaller than the sum of its proper divisors (240059133198).

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

204543525042 is a wasteful number, since it uses less digits than its factorization.

204543525042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36538998 (or 36538995 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The spelling of 204543525042 in words is "two hundred four billion, five hundred forty-three million, five hundred twenty-five thousand, forty-two".