204677559842 has 12 divisors (see below), whose sum is σ = 357141456630. Its totient is φ = 87718954176.

The previous prime is 204677559811. The next prime is 204677559857. The reversal of 204677559842 is 248955776402.

It can be written as a sum of positive squares in only one way, i.e., 203744807161 + 932752681 = 451381^2 + 30541^2 .

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 5 ways as a sum of consecutive naturals, for example, 1044273167 + ... + 1044273362.

Almost surely, 2^204677559842 is an apocalyptic number.

204677559842 is a deficient number, since it is larger than the sum of its proper divisors (152463896788).

204677559842 is a wasteful number, since it uses less digits than its factorization.

204677559842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088546545 (or 2088546538 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 59.

The spelling of 204677559842 in words is "two hundred four billion, six hundred seventy-seven million, five hundred fifty-nine thousand, eight hundred forty-two".