16807275819689 has 2 divisors, whose sum is σ = 16807275819690. Its totient is φ = 16807275819688.

The previous prime is 16807275819671. The next prime is 16807275819709. The reversal of 16807275819689 is 98691857270861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16685550192025 + 121725627664 = 4084795^2 + 348892^2 .

It is a cyclic number.

It is not a de Polignac number, because 16807275819689 - 2¹² = 16807275815593 is a prime.

It is not a weakly prime, because it can be changed into another prime (16807275869689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8403637909844 + 8403637909845.

It is an arithmetic number, because the mean of its divisors is an integer number (8403637909845).

Almost surely, 2^{16807275819689} is an apocalyptic number.

It is an amenable number.

16807275819689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16807275819689 is an equidigital number, since it uses as much as digits as its factorization.

16807275819689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 731566080, while the sum is 77.

The spelling of 16807275819689 in words is "sixteen trillion, eight hundred seven billion, two hundred seventy-five million, eight hundred nineteen thousand, six hundred eighty-nine".