16364827043689 has 2 divisors, whose sum is σ = 16364827043690. Its totient is φ = 16364827043688.

The previous prime is 16364827043573. The next prime is 16364827043699. The reversal of 16364827043689 is 98634072846361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8331258777664 + 8033568266025 = 2886392^2 + 2834355^2 .

It is a cyclic number.

It is not a de Polignac number, because 16364827043689 - 2²⁵ = 16364793489257 is a prime.

It is not a weakly prime, because it can be changed into another prime (16364827043699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8182413521844 + 8182413521845.

It is an arithmetic number, because the mean of its divisors is an integer number (8182413521845).

Almost surely, 2^{16364827043689} is an apocalyptic number.

It is an amenable number.

16364827043689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16364827043689 is an equidigital number, since it uses as much as digits as its factorization.

16364827043689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250822656, while the sum is 67.

The spelling of 16364827043689 in words is "sixteen trillion, three hundred sixty-four billion, eight hundred twenty-seven million, forty-three thousand, six hundred eighty-nine".