204581735442 has 72 divisors (see below), whose sum is σ = 515760435216. Its totient is φ = 58437079344.

The previous prime is 204581735431. The next prime is 204581735551. The reversal of 204581735442 is 244537185402.

204581735442 is a `hidden beast` number, since 20 + 4 + 5 + 81 + 7 + 3 + 544 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3714993 + ... + 3769659.

It is an arithmetic number, because the mean of its divisors is an integer number (7163339378).

Almost surely, 2^204581735442 is an apocalyptic number.

204581735442 is an abundant number, since it is smaller than the sum of its proper divisors (311178699774).

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

204581735442 is a wasteful number, since it uses less digits than its factorization.

204581735442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58932 (or 58922 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The spelling of 204581735442 in words is "two hundred four billion, five hundred eighty-one million, seven hundred thirty-five thousand, four hundred forty-two".