1685461012 has 12 divisors (see below), whose sum is σ = 2950630900. Its totient is φ = 842423616.

The previous prime is 1685461009. The next prime is 1685461013. The reversal of 1685461012 is 2101645861.

It can be written as a sum of positive squares in 2 ways, for example, as 1124529156 + 560931856 = 33534^2 + 23684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685461013) 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, 64137 + ... + 86512.

Almost surely, 2^1685461012 is an apocalyptic number.

It is an amenable number.

1685461012 is a deficient number, since it is larger than the sum of its proper divisors (1265169888).

1685461012 is a wasteful number, since it uses less digits than its factorization.

1685461012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153450 (or 153448 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1685461012 is about 41054.3665399918. The cubic root of 1685461012 is about 1190.0710858366.

The spelling of 1685461012 in words is "one billion, six hundred eighty-five million, four hundred sixty-one thousand, twelve".