1352032728565 has 4 divisors (see below), whose sum is σ = 1622439274284. Its totient is φ = 1081626182848.

The previous prime is 1352032728517. The next prime is 1352032728569. The reversal of 1352032728565 is 5658272302531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154651854564 + 1197380874001 = 393258^2 + 1094249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352032728565 - 2¹³ = 1352032720373 is a prime.

It is a super-2 number, since 2×1352032728565² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352032728569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135203272852 + ... + 135203272861.

It is an arithmetic number, because the mean of its divisors is an integer number (405609818571).

Almost surely, 2^{1352032728565} is an apocalyptic number.

It is an amenable number.

1352032728565 is a deficient number, since it is larger than the sum of its proper divisors (270406545719).

1352032728565 is an equidigital number, since it uses as much as digits as its factorization.

1352032728565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270406545718.

The product of its (nonzero) digits is 3024000, while the sum is 49.

The spelling of 1352032728565 in words is "one trillion, three hundred fifty-two billion, thirty-two million, seven hundred twenty-eight thousand, five hundred sixty-five".