23783207500809 has 45 divisors (see below), whose sum is σ = 35727579118231. Its totient is φ = 15766899171120.

The previous prime is 23783207500783. The next prime is 23783207500817. The reversal of 23783207500809 is 90800570238732.

The square root of 23783207500809 is 4876803.

It is a perfect power (a square), and thus also a powerful number.

23783207500809 is a `hidden beast` number, since 2 + 37 + 8 + 3 + 20 + 7 + 500 + 80 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 814461125625 + 22968746375184 = 902475^2 + 4792572^2 .

It is not a de Polignac number, because 23783207500809 - 2⁴³ = 14987114478601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23783207500849) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 8383222939 + ... + 8383225775.

Almost surely, 2^{23783207500809} is an apocalyptic number.

23783207500809 is the 4876803-rd square number.

23783207500809 is the 2438402-nd centered octagonal number.

It is an amenable number.

23783207500809 is a deficient number, since it is larger than the sum of its proper divisors (11944371617422).

23783207500809 is an frugal number, since it uses more digits than its factorization.

23783207500809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6068 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 23783207500809 in words is "twenty-three trillion, seven hundred eighty-three billion, two hundred seven million, five hundred thousand, eight hundred nine".