8856936938321 has 2 divisors, whose sum is σ = 8856936938322. Its totient is φ = 8856936938320.

The previous prime is 8856936938303. The next prime is 8856936938419. The reversal of 8856936938321 is 1238396396588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7147276086721 + 1709660851600 = 2673439^2 + 1307540^2 .

It is a cyclic number.

It is not a de Polignac number, because 8856936938321 - 2⁴² = 4458890427217 is a prime.

It is not a weakly prime, because it can be changed into another prime (8856936938621) 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 as a sum of consecutive naturals, namely, 4428468469160 + 4428468469161.

It is an arithmetic number, because the mean of its divisors is an integer number (4428468469161).

Almost surely, 2^{8856936938321} is an apocalyptic number.

It is an amenable number.

8856936938321 is a deficient number, since it is larger than the sum of its proper divisors (1).

8856936938321 is an equidigital number, since it uses as much as digits as its factorization.

8856936938321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403107840, while the sum is 71.

The spelling of 8856936938321 in words is "eight trillion, eight hundred fifty-six billion, nine hundred thirty-six million, nine hundred thirty-eight thousand, three hundred twenty-one".