9876490946789 has 2 divisors, whose sum is σ = 9876490946790. Its totient is φ = 9876490946788.

The previous prime is 9876490946771. The next prime is 9876490946821.

9876490946789 is nontrivially palindromic in base 10.

9876490946789 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., 5183886544225 + 4692604402564 = 2276815^2 + 2166242^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9876490946789 - 2⁸ = 9876490946533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9876490946789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9876490946489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4938245473394 + 4938245473395.

It is an arithmetic number, because the mean of its divisors is an integer number (4938245473395).

Almost surely, 2^{9876490946789} is an apocalyptic number.

It is an amenable number.

9876490946789 is a deficient number, since it is larger than the sum of its proper divisors (1).

9876490946789 is an equidigital number, since it uses as much as digits as its factorization.

9876490946789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11851370496, while the sum is 86.

The spelling of 9876490946789 in words is "nine trillion, eight hundred seventy-six billion, four hundred ninety million, nine hundred forty-six thousand, seven hundred eighty-nine".