1689896325499 has 2 divisors, whose sum is σ = 1689896325500. Its totient is φ = 1689896325498.

The previous prime is 1689896325497. The next prime is 1689896325503. The reversal of 1689896325499 is 9945236989861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1689896325499 - 2¹ = 1689896325497 is a prime.

Together with 1689896325497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1689896325497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844948162749 + 844948162750.

It is an arithmetic number, because the mean of its divisors is an integer number (844948162750).

Almost surely, 2^{1689896325499} is an apocalyptic number.

1689896325499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1689896325499 is an equidigital number, since it uses as much as digits as its factorization.

1689896325499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1813985280, while the sum is 79.

The spelling of 1689896325499 in words is "one trillion, six hundred eighty-nine billion, eight hundred ninety-six million, three hundred twenty-five thousand, four hundred ninety-nine".