1685058260865 has 32 divisors (see below), whose sum is σ = 3084384116736. Its totient is φ = 769528666560.

The previous prime is 1685058260849. The next prime is 1685058260867. The reversal of 1685058260865 is 5680628505861.

It is not a de Polignac number, because 1685058260865 - 2⁴ = 1685058260849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1685058260799 and 1685058260808.

It is not an unprimeable number, because it can be changed into a prime (1685058260867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8059641 + ... + 8266070.

It is an arithmetic number, because the mean of its divisors is an integer number (96387003648).

Almost surely, 2^{1685058260865} is an apocalyptic number.

1685058260865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1685058260865 is a deficient number, since it is larger than the sum of its proper divisors (1399325855871).

1685058260865 is a wasteful number, since it uses less digits than its factorization.

1685058260865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16326709.

The product of its (nonzero) digits is 27648000, while the sum is 60.

The spelling of 1685058260865 in words is "one trillion, six hundred eighty-five billion, fifty-eight million, two hundred sixty thousand, eight hundred sixty-five".