1686461660229 has 8 divisors (see below), whose sum is σ = 2248784554720. Its totient is φ = 1124223269616.

The previous prime is 1686461660203. The next prime is 1686461660263. The reversal of 1686461660229 is 9220661646861.

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

It is not a de Polignac number, because 1686461660229 - 2⁹ = 1686461659717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1686461660269) 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, 21079387 + ... + 21159240.

It is an arithmetic number, because the mean of its divisors is an integer number (281098069340).

Almost surely, 2^{1686461660229} is an apocalyptic number.

It is an amenable number.

1686461660229 is a deficient number, since it is larger than the sum of its proper divisors (562322894491).

1686461660229 is a wasteful number, since it uses less digits than its factorization.

1686461660229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42251939.

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 1686461660229 in words is "one trillion, six hundred eighty-six billion, four hundred sixty-one million, six hundred sixty thousand, two hundred twenty-nine".