204707313945 has 24 divisors (see below), whose sum is σ = 373501065600. Its totient is φ = 103431063456.

The previous prime is 204707313919. The next prime is 204707313953. The reversal of 204707313945 is 549313707402.

204707313945 is a `hidden beast` number, since 2 + 0 + 470 + 7 + 3 + 139 + 45 = 666.

204707313945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204707313945 - 2⁵ = 204707313913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 204707313945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119711025 + ... + 119712734.

It is an arithmetic number, because the mean of its divisors is an integer number (15562544400).

Almost surely, 2^204707313945 is an apocalyptic number.

It is an amenable number.

204707313945 is a deficient number, since it is larger than the sum of its proper divisors (168793751655).

204707313945 is a wasteful number, since it uses less digits than its factorization.

204707313945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239423789 (or 239423786 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 204707313945 in words is "two hundred four billion, seven hundred seven million, three hundred thirteen thousand, nine hundred forty-five".