8282532887721 has 45 divisors (see below), whose sum is σ = 12472951214119. Its totient is φ = 5477293504800.

The previous prime is 8282532887677. The next prime is 8282532887731. The reversal of 8282532887721 is 1277882352828.

The square root of 8282532887721 is 2877939.

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

8282532887721 is a `hidden beast` number, since 8 + 2 + 8 + 2 + 532 + 8 + 8 + 77 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 800776209321 + 7481756678400 = 894861^2 + 2735280^2 .

It is not a de Polignac number, because 8282532887721 - 2³⁵ = 8248173149353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8282532887731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3393088861 + ... + 3393091301.

Almost surely, 2^{8282532887721} is an apocalyptic number.

8282532887721 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8282532887721 is the 2877939-th square number.

8282532887721 is the 1438970-th centered octagonal number.

It is an amenable number.

8282532887721 is a deficient number, since it is larger than the sum of its proper divisors (4190418326398).

8282532887721 is an frugal number, since it uses more digits than its factorization.

8282532887721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156 (or 2575 counting only the distinct ones).

The product of its digits is 48168960, while the sum is 63.

The spelling of 8282532887721 in words is "eight trillion, two hundred eighty-two billion, five hundred thirty-two million, eight hundred eighty-seven thousand, seven hundred twenty-one".