9893928293989 has 2 divisors, whose sum is σ = 9893928293990. Its totient is φ = 9893928293988.

The previous prime is 9893928293981. The next prime is 9893928293999.

9893928293989 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9752142156964 + 141786137025 = 3122842^2 + 376545^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9893928293989 - 2³ = 9893928293981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9893928293981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4946964146994 + 4946964146995.

It is an arithmetic number, because the mean of its divisors is an integer number (4946964146995).

Almost surely, 2^{9893928293989} is an apocalyptic number.

It is an amenable number.

9893928293989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9893928293989 is an equidigital number, since it uses as much as digits as its factorization.

9893928293989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9795520512, while the sum is 88.

The spelling of 9893928293989 in words is "nine trillion, eight hundred ninety-three billion, nine hundred twenty-eight million, two hundred ninety-three thousand, nine hundred eighty-nine".