1685368852 has 6 divisors (see below), whose sum is σ = 2949395498. Its totient is φ = 842684424.

The previous prime is 1685368849. The next prime is 1685368859. The reversal of 1685368852 is 2588635861.

It can be written as a sum of positive squares in only one way, i.e., 1610095876 + 75272976 = 40126^2 + 8676^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1685368852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685368859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210671103 + ... + 210671110.

Almost surely, 2^1685368852 is an apocalyptic number.

It is an amenable number.

1685368852 is a deficient number, since it is larger than the sum of its proper divisors (1264026646).

1685368852 is a wasteful number, since it uses less digits than its factorization.

1685368852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421342217 (or 421342215 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 52.

The square root of 1685368852 is about 41053.2441105450. The cubic root of 1685368852 is about 1190.0493946495.

The spelling of 1685368852 in words is "one billion, six hundred eighty-five million, three hundred sixty-eight thousand, eight hundred fifty-two".