1685001850093 has 2 divisors, whose sum is σ = 1685001850094. Its totient is φ = 1685001850092.

The previous prime is 1685001850039. The next prime is 1685001850153. The reversal of 1685001850093 is 3900581005861.

Together with previous prime (1685001850039) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1169473542084 + 515528308009 = 1081422^2 + 718003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1685001850093 - 2⁹ = 1685001849581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1685001850193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842500925046 + 842500925047.

It is an arithmetic number, because the mean of its divisors is an integer number (842500925047).

Almost surely, 2^{1685001850093} is an apocalyptic number.

It is an amenable number.

1685001850093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1685001850093 is an equidigital number, since it uses as much as digits as its factorization.

1685001850093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 1685001850093 in words is "one trillion, six hundred eighty-five billion, one million, eight hundred fifty thousand, ninety-three".