1027732668505 has 4 divisors (see below), whose sum is σ = 1233279202212. Its totient is φ = 822186134800.

The previous prime is 1027732668451. The next prime is 1027732668527. The reversal of 1027732668505 is 5058662377201.

It is a happy number.

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 283824693504 + 743907975001 = 532752^2 + 862501^2 .

It is not a de Polignac number, because 1027732668505 - 2⁷ = 1027732668377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102773266846 + ... + 102773266855.

It is an arithmetic number, because the mean of its divisors is an integer number (308319800553).

Almost surely, 2^{1027732668505} is an apocalyptic number.

It is an amenable number.

1027732668505 is a deficient number, since it is larger than the sum of its proper divisors (205546533707).

1027732668505 is an equidigital number, since it uses as much as digits as its factorization.

1027732668505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205546533706.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 1027732668505 in words is "one trillion, twenty-seven billion, seven hundred thirty-two million, six hundred sixty-eight thousand, five hundred five".