204252607864 has 64 divisors (see below), whose sum is σ = 430440595200. Its totient is φ = 90392391936.

The previous prime is 204252607799. The next prime is 204252607891. The reversal of 204252607864 is 468706252402.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 529029 + ... + 829684.

It is an arithmetic number, because the mean of its divisors is an integer number (6725634300).

Almost surely, 2^204252607864 is an apocalyptic number.

It is an amenable number.

204252607864 is an abundant number, since it is smaller than the sum of its proper divisors (226187987336).

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

204252607864 is a wasteful number, since it uses less digits than its factorization.

204252607864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358804 (or 1358800 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 204252607864 in words is "two hundred four billion, two hundred fifty-two million, six hundred seven thousand, eight hundred sixty-four".