8873210081 has 2 divisors, whose sum is σ = 8873210082. Its totient is φ = 8873210080.

The previous prime is 8873210077. The next prime is 8873210107. The reversal of 8873210081 is 1800123788.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7835790400 + 1037419681 = 88520^2 + 32209^2 .

It is a cyclic number.

It is not a de Polignac number, because 8873210081 - 2² = 8873210077 is a prime.

It is a super-2 number, since 2×8873210081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8873210581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4436605040 + 4436605041.

It is an arithmetic number, because the mean of its divisors is an integer number (4436605041).

Almost surely, 2^8873210081 is an apocalyptic number.

It is an amenable number.

8873210081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8873210081 is an equidigital number, since it uses as much as digits as its factorization.

8873210081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 8873210081 is about 94197.7180243768. The cubic root of 8873210081 is about 2070.2696779661.

The spelling of 8873210081 in words is "eight billion, eight hundred seventy-three million, two hundred ten thousand, eighty-one".