1681727041694 has 8 divisors (see below), whose sum is σ = 2882960642928. Its totient is φ = 720740160720.

The previous prime is 1681727041661. The next prime is 1681727041699. The reversal of 1681727041694 is 4961407271861.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681727041699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60061680047 + ... + 60061680074.

It is an arithmetic number, because the mean of its divisors is an integer number (360370080366).

Almost surely, 2^{1681727041694} is an apocalyptic number.

1681727041694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1681727041694 is a deficient number, since it is larger than the sum of its proper divisors (1201233601234).

1681727041694 is a wasteful number, since it uses less digits than its factorization.

1681727041694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120123360130.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 1681727041694 in words is "one trillion, six hundred eighty-one billion, seven hundred twenty-seven million, forty-one thousand, six hundred ninety-four".