8338338979489 has 2 divisors, whose sum is σ = 8338338979490. Its totient is φ = 8338338979488.

The previous prime is 8338338979433. The next prime is 8338338979559. The reversal of 8338338979489 is 9849798338338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8156507521600 + 181831457889 = 2855960^2 + 426417^2 .

It is a cyclic number.

It is not a de Polignac number, because 8338338979489 - 2¹⁹ = 8338338455201 is a prime.

It is a super-2 number, since 2×8338338979489² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8338338979429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4169169489744 + 4169169489745.

It is an arithmetic number, because the mean of its divisors is an integer number (4169169489745).

Almost surely, 2^{8338338979489} is an apocalyptic number.

It is an amenable number.

8338338979489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8338338979489 is an equidigital number, since it uses as much as digits as its factorization.

8338338979489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6772211712, while the sum is 82.

The spelling of 8338338979489 in words is "eight trillion, three hundred thirty-eight billion, three hundred thirty-eight million, nine hundred seventy-nine thousand, four hundred eighty-nine".