827372727281 has 16 divisors (see below), whose sum is σ = 842365547520. Its totient is φ = 812524348800.

The previous prime is 827372727271. The next prime is 827372727289. The reversal of 827372727281 is 182727273728.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-827372727281 is a prime.

It is a super-2 number, since 2×827372727281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (827372727289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15233285 + ... + 15287501.

It is an arithmetic number, because the mean of its divisors is an integer number (52647846720).

Almost surely, 2^827372727281 is an apocalyptic number.

It is an amenable number.

827372727281 is a deficient number, since it is larger than the sum of its proper divisors (14992820239).

827372727281 is a wasteful number, since it uses less digits than its factorization.

827372727281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55544.

The product of its digits is 7375872, while the sum is 56.

The spelling of 827372727281 in words is "eight hundred twenty-seven billion, three hundred seventy-two million, seven hundred twenty-seven thousand, two hundred eighty-one".