204874742546 has 16 divisors (see below), whose sum is σ = 323615476800. Its totient is φ = 97084638288.

The previous prime is 204874742533. The next prime is 204874742551. The reversal of 204874742546 is 645247478402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20425256 + ... + 20435283.

It is an arithmetic number, because the mean of its divisors is an integer number (20225967300).

Almost surely, 2^204874742546 is an apocalyptic number.

204874742546 is a deficient number, since it is larger than the sum of its proper divisors (118740734254).

204874742546 is a wasteful number, since it uses less digits than its factorization.

204874742546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40860673.

The product of its (nonzero) digits is 12042240, while the sum is 53.

The spelling of 204874742546 in words is "two hundred four billion, eight hundred seventy-four million, seven hundred forty-two thousand, five hundred forty-six".