16986873479399 has 2 divisors, whose sum is σ = 16986873479400. Its totient is φ = 16986873479398.

The previous prime is 16986873479371. The next prime is 16986873479441. The reversal of 16986873479399 is 99397437868961.

16986873479399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (99397437868961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16986873479399 - 2¹² = 16986873475303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16986873479309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8493436739699 + 8493436739700.

It is an arithmetic number, because the mean of its divisors is an integer number (8493436739700).

Almost surely, 2^{16986873479399} is an apocalyptic number.

16986873479399 is a deficient number, since it is larger than the sum of its proper divisors (1).

16986873479399 is an equidigital number, since it uses as much as digits as its factorization.

16986873479399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26665583616, while the sum is 89.

The spelling of 16986873479399 in words is "sixteen trillion, nine hundred eighty-six billion, eight hundred seventy-three million, four hundred seventy-nine thousand, three hundred ninety-nine".