9071647403989 has 2 divisors, whose sum is σ = 9071647403990. Its totient is φ = 9071647403988.

The previous prime is 9071647403947. The next prime is 9071647404007. The reversal of 9071647403989 is 9893047461709.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8205835763889 + 865811640100 = 2864583^2 + 930490^2 .

It is a cyclic number.

It is not a de Polignac number, because 9071647403989 - 2³⁹ = 8521891590101 is a prime.

It is a super-2 number, since 2×9071647403989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9071647493989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4535823701994 + 4535823701995.

It is an arithmetic number, because the mean of its divisors is an integer number (4535823701995).

Almost surely, 2^{9071647403989} is an apocalyptic number.

It is an amenable number.

9071647403989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9071647403989 is an equidigital number, since it uses as much as digits as its factorization.

9071647403989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82301184, while the sum is 67.

The spelling of 9071647403989 in words is "nine trillion, seventy-one billion, six hundred forty-seven million, four hundred three thousand, nine hundred eighty-nine".