1685386855367 has 8 divisors (see below), whose sum is σ = 1731768913776. Its totient is φ = 1639048537152.

The previous prime is 1685386855357. The next prime is 1685386855379. The reversal of 1685386855367 is 7635586835861.

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 1685386855367 - 2⁸ = 1685386855111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1685386855367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685386855357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10856918 + ... + 11011059.

It is an arithmetic number, because the mean of its divisors is an integer number (216471114222).

Almost surely, 2^{1685386855367} is an apocalyptic number.

1685386855367 is a deficient number, since it is larger than the sum of its proper divisors (46382058409).

1685386855367 is a wasteful number, since it uses less digits than its factorization.

1685386855367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870097.

The product of its digits is 870912000, while the sum is 71.

The spelling of 1685386855367 in words is "one trillion, six hundred eighty-five billion, three hundred eighty-six million, eight hundred fifty-five thousand, three hundred sixty-seven".