16768041677 has 2 divisors, whose sum is σ = 16768041678. Its totient is φ = 16768041676.

The previous prime is 16768041649. The next prime is 16768041679. The reversal of 16768041677 is 77614086761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8454066916 + 8313974761 = 91946^2 + 91181^2 .

It is an emirp because it is prime and its reverse (77614086761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16768041677 is a prime.

Together with 16768041679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16768041679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8384020838 + 8384020839.

It is an arithmetic number, because the mean of its divisors is an integer number (8384020839).

Almost surely, 2^16768041677 is an apocalyptic number.

It is an amenable number.

16768041677 is a deficient number, since it is larger than the sum of its proper divisors (1).

16768041677 is an equidigital number, since it uses as much as digits as its factorization.

16768041677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 16768041677 in words is "sixteen billion, seven hundred sixty-eight million, forty-one thousand, six hundred seventy-seven".