8894748782281 has 2 divisors, whose sum is σ = 8894748782282. Its totient is φ = 8894748782280.

The previous prime is 8894748782267. The next prime is 8894748782303. The reversal of 8894748782281 is 1822878474988.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7575733284025 + 1319015498256 = 2752405^2 + 1148484^2 .

It is a cyclic number.

It is not a de Polignac number, because 8894748782281 - 2¹¹ = 8894748780233 is a prime.

It is a super-2 number, since 2×8894748782281² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8894748782198 and 8894748782207.

It is not a weakly prime, because it can be changed into another prime (8894748782581) 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 as a sum of consecutive naturals, namely, 4447374391140 + 4447374391141.

It is an arithmetic number, because the mean of its divisors is an integer number (4447374391141).

Almost surely, 2^{8894748782281} is an apocalyptic number.

It is an amenable number.

8894748782281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8894748782281 is an equidigital number, since it uses as much as digits as its factorization.

8894748782281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 924844032, while the sum is 76.

The spelling of 8894748782281 in words is "eight trillion, eight hundred ninety-four billion, seven hundred forty-eight million, seven hundred eighty-two thousand, two hundred eighty-one".