1688048616607 has 2 divisors, whose sum is σ = 1688048616608. Its totient is φ = 1688048616606.

The previous prime is 1688048616581. The next prime is 1688048616619. The reversal of 1688048616607 is 7066168408861.

It is a strong prime.

It is an emirp because it is prime and its reverse (7066168408861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1688048616607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1688048616707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844024308303 + 844024308304.

It is an arithmetic number, because the mean of its divisors is an integer number (844024308304).

Almost surely, 2^{1688048616607} is an apocalyptic number.

1688048616607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1688048616607 is an equidigital number, since it uses as much as digits as its factorization.

1688048616607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 1688048616607 in words is "one trillion, six hundred eighty-eight billion, forty-eight million, six hundred sixteen thousand, six hundred seven".