1680357747289 has 8 divisors (see below), whose sum is σ = 1812064782080. Its totient is φ = 1549000533456.

The previous prime is 1680357747281. The next prime is 1680357747301. The reversal of 1680357747289 is 9827477530861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1680357747289 - 2³ = 1680357747281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680357747281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87445257 + ... + 87464470.

It is an arithmetic number, because the mean of its divisors is an integer number (226508097760).

It is a 1-persistent number, because it is pandigital, but 2⋅1680357747289 = 3360715494578 is not.

Almost surely, 2^{1680357747289} is an apocalyptic number.

It is an amenable number.

1680357747289 is a deficient number, since it is larger than the sum of its proper divisors (131707034791).

1680357747289 is a wasteful number, since it uses less digits than its factorization.

1680357747289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174910479.

The product of its (nonzero) digits is 142248960, while the sum is 67.

The spelling of 1680357747289 in words is "one trillion, six hundred eighty billion, three hundred fifty-seven million, seven hundred forty-seven thousand, two hundred eighty-nine".