6978589813289 has 2 divisors, whose sum is σ = 6978589813290. Its totient is φ = 6978589813288.

The previous prime is 6978589813267. The next prime is 6978589813291. The reversal of 6978589813289 is 9823189858796.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6621703053289 + 356886760000 = 2573267^2 + 597400^2 .

It is a cyclic number.

It is not a de Polignac number, because 6978589813289 - 2¹² = 6978589809193 is a prime.

Together with 6978589813291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6978589813219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489294906644 + 3489294906645.

It is an arithmetic number, because the mean of its divisors is an integer number (3489294906645).

Almost surely, 2^{6978589813289} is an apocalyptic number.

It is an amenable number.

6978589813289 is a deficient number, since it is larger than the sum of its proper divisors (1).

6978589813289 is an equidigital number, since it uses as much as digits as its factorization.

6978589813289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3762339840, while the sum is 83.

The spelling of 6978589813289 in words is "six trillion, nine hundred seventy-eight billion, five hundred eighty-nine million, eight hundred thirteen thousand, two hundred eighty-nine".