16973549845387 has 2 divisors, whose sum is σ = 16973549845388. Its totient is φ = 16973549845386.

The previous prime is 16973549845331. The next prime is 16973549845391. The reversal of 16973549845387 is 78354894537961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16973549845387 - 2¹¹ = 16973549843339 is a prime.

It is not a weakly prime, because it can be changed into another prime (16973549845397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8486774922693 + 8486774922694.

It is an arithmetic number, because the mean of its divisors is an integer number (8486774922694).

Almost surely, 2^{16973549845387} is an apocalyptic number.

16973549845387 is a deficient number, since it is larger than the sum of its proper divisors (1).

16973549845387 is an equidigital number, since it uses as much as digits as its factorization.

16973549845387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5486745600, while the sum is 79.

The spelling of 16973549845387 in words is "sixteen trillion, nine hundred seventy-three billion, five hundred forty-nine million, eight hundred forty-five thousand, three hundred eighty-seven".