9081678787793 has 2 divisors, whose sum is σ = 9081678787794. Its totient is φ = 9081678787792.

The previous prime is 9081678787789. The next prime is 9081678787837. The reversal of 9081678787793 is 3977878761809.

9081678787793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8907049243024 + 174629544769 = 2984468^2 + 417887^2 .

It is a cyclic number.

It is not a de Polignac number, because 9081678787793 - 2² = 9081678787789 is a prime.

It is not a weakly prime, because it can be changed into another prime (9081678787393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4540839393896 + 4540839393897.

It is an arithmetic number, because the mean of its divisors is an integer number (4540839393897).

Almost surely, 2^{9081678787793} is an apocalyptic number.

It is an amenable number.

9081678787793 is a deficient number, since it is larger than the sum of its proper divisors (1).

9081678787793 is an equidigital number, since it uses as much as digits as its factorization.

9081678787793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792336896, while the sum is 80.

The spelling of 9081678787793 in words is "nine trillion, eighty-one billion, six hundred seventy-eight million, seven hundred eighty-seven thousand, seven hundred ninety-three".