8389358880691 has 2 divisors, whose sum is σ = 8389358880692. Its totient is φ = 8389358880690.

The previous prime is 8389358880629. The next prime is 8389358880779. The reversal of 8389358880691 is 1960888539838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8389358880691 - 2⁷ = 8389358880563 is a prime.

It is not a weakly prime, because it can be changed into another prime (8389358886691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4194679440345 + 4194679440346.

It is an arithmetic number, because the mean of its divisors is an integer number (4194679440346).

Almost surely, 2^{8389358880691} is an apocalyptic number.

8389358880691 is a deficient number, since it is larger than the sum of its proper divisors (1).

8389358880691 is an equidigital number, since it uses as much as digits as its factorization.

8389358880691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 716636160, while the sum is 76.

The spelling of 8389358880691 in words is "eight trillion, three hundred eighty-nine billion, three hundred fifty-eight million, eight hundred eighty thousand, six hundred ninety-one".