1681411703785 has 8 divisors (see below), whose sum is σ = 2201120775936. Its totient is φ = 1222844875440.

The previous prime is 1681411703773. The next prime is 1681411703813. The reversal of 1681411703785 is 5873071141861.

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

It is not a de Polignac number, because 1681411703785 - 2⁹ = 1681411703273 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, 15285560889 + ... + 15285560998.

It is an arithmetic number, because the mean of its divisors is an integer number (275140096992).

Almost surely, 2^{1681411703785} is an apocalyptic number.

It is an amenable number.

1681411703785 is a deficient number, since it is larger than the sum of its proper divisors (519709072151).

1681411703785 is a wasteful number, since it uses less digits than its factorization.

1681411703785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30571121903.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The spelling of 1681411703785 in words is "one trillion, six hundred eighty-one billion, four hundred eleven million, seven hundred three thousand, seven hundred eighty-five".