8812747747081 has 2 divisors, whose sum is σ = 8812747747082. Its totient is φ = 8812747747080.

The previous prime is 8812747747079. The next prime is 8812747747109. The reversal of 8812747747081 is 1807477472188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7045733184400 + 1767014562681 = 2654380^2 + 1329291^2 .

It is a cyclic number.

It is not a de Polignac number, because 8812747747081 - 2¹ = 8812747747079 is a prime.

It is a super-2 number, since 2×8812747747081² (a number of 27 digits) contains 22 as substring.

Together with 8812747747079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8812747747051) 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, 4406373873540 + 4406373873541.

It is an arithmetic number, because the mean of its divisors is an integer number (4406373873541).

Almost surely, 2^{8812747747081} is an apocalyptic number.

It is an amenable number.

8812747747081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8812747747081 is an equidigital number, since it uses as much as digits as its factorization.

8812747747081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39337984, while the sum is 64.

The spelling of 8812747747081 in words is "eight trillion, eight hundred twelve billion, seven hundred forty-seven million, seven hundred forty-seven thousand, eighty-one".