16973549845123 has 2 divisors, whose sum is σ = 16973549845124. Its totient is φ = 16973549845122.

The previous prime is 16973549845111. The next prime is 16973549845141. The reversal of 16973549845123 is 32154894537961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16973549845123 - 2¹³ = 16973549836931 is a prime.

It is not a weakly prime, because it can be changed into another prime (16973549845183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8486774922561 + 8486774922562.

It is an arithmetic number, because the mean of its divisors is an integer number (8486774922562).

Almost surely, 2^{16973549845123} is an apocalyptic number.

16973549845123 is a deficient number, since it is larger than the sum of its proper divisors (1).

16973549845123 is an equidigital number, since it uses as much as digits as its factorization.

16973549845123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 195955200, while the sum is 67.

The spelling of 16973549845123 in words is "sixteen trillion, nine hundred seventy-three billion, five hundred forty-nine million, eight hundred forty-five thousand, one hundred twenty-three".