1685081858185 has 8 divisors (see below), whose sum is σ = 2205925341696. Its totient is φ = 1225514078640.

The previous prime is 1685081858149. The next prime is 1685081858231. The reversal of 1685081858185 is 5818581805861.

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

It is not a de Polignac number, because 1685081858185 - 2¹⁵ = 1685081825417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15318925929 + ... + 15318926038.

It is an arithmetic number, because the mean of its divisors is an integer number (275740667712).

Almost surely, 2^{1685081858185} is an apocalyptic number.

It is an amenable number.

1685081858185 is a deficient number, since it is larger than the sum of its proper divisors (520843483511).

1685081858185 is a wasteful number, since it uses less digits than its factorization.

1685081858185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30637851983.

The product of its (nonzero) digits is 24576000, while the sum is 64.

The spelling of 1685081858185 in words is "one trillion, six hundred eighty-five billion, eighty-one million, eight hundred fifty-eight thousand, one hundred eighty-five".