13204530765 has 16 divisors (see below), whose sum is σ = 23474721600. Its totient is φ = 7042416336.

The previous prime is 13204530727. The next prime is 13204530767. The reversal of 13204530765 is 56703540231.

13204530765 is a `hidden beast` number, since 132 + 0 + 453 + 0 + 76 + 5 = 666.

It is not a de Polignac number, because 13204530765 - 2⁷ = 13204530637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204530767) 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, 48905535 + ... + 48905804.

It is an arithmetic number, because the mean of its divisors is an integer number (1467170100).

Almost surely, 2^13204530765 is an apocalyptic number.

13204530765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13204530765 is a deficient number, since it is larger than the sum of its proper divisors (10270190835).

13204530765 is an equidigital number, since it uses as much as digits as its factorization.

13204530765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97811353 (or 97811347 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 13204530765 in words is "thirteen billion, two hundred four million, five hundred thirty thousand, seven hundred sixty-five".