204152452709 has 16 divisors (see below), whose sum is σ = 210458167920. Its totient is φ = 197889615360.

The previous prime is 204152452681. The next prime is 204152452723. The reversal of 204152452709 is 907254251402.

It can be written as a sum of positive squares in 8 ways, for example, as 9333025 + 204143119684 = 3055^2 + 451822^2 .

It is a cyclic number.

It is not a de Polignac number, because 204152452709 - 2²⁰ = 204151404133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204152451709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11129057 + ... + 11147385.

It is an arithmetic number, because the mean of its divisors is an integer number (13153635495).

Almost surely, 2^204152452709 is an apocalyptic number.

It is an amenable number.

204152452709 is a deficient number, since it is larger than the sum of its proper divisors (6305715211).

204152452709 is a wasteful number, since it uses less digits than its factorization.

204152452709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19480.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 204152452709 in words is "two hundred four billion, one hundred fifty-two million, four hundred fifty-two thousand, seven hundred nine".