6769848489661 has 2 divisors, whose sum is σ = 6769848489662. Its totient is φ = 6769848489660.

The previous prime is 6769848489659. The next prime is 6769848489697. The reversal of 6769848489661 is 1669848489676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4351108136761 + 2418740352900 = 2085931^2 + 1555230^2 .

It is a cyclic number.

It is not a de Polignac number, because 6769848489661 - 2¹ = 6769848489659 is a prime.

Together with 6769848489659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6769848489611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3384924244830 + 3384924244831.

It is an arithmetic number, because the mean of its divisors is an integer number (3384924244831).

Almost surely, 2^{6769848489661} is an apocalyptic number.

It is an amenable number.

6769848489661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6769848489661 is an equidigital number, since it uses as much as digits as its factorization.

6769848489661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6019743744, while the sum is 82.

The spelling of 6769848489661 in words is "six trillion, seven hundred sixty-nine billion, eight hundred forty-eight million, four hundred eighty-nine thousand, six hundred sixty-one".