685851852 has 48 divisors (see below), whose sum is σ = 1830897152. Its totient is φ = 195747840.

The previous prime is 685851823. The next prime is 685851857. The reversal of 685851852 is 258158586.

It is not an unprimeable number, because it can be changed into a prime (685851857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85452 + ... + 93132.

Almost surely, 2^685851852 is an apocalyptic number.

It is an amenable number.

685851852 is an abundant number, since it is smaller than the sum of its proper divisors (1145045300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685851852 is a wasteful number, since it uses less digits than its factorization.

685851852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758 (or 8756 counting only the distinct ones).

The product of its digits is 768000, while the sum is 48.

The square root of 685851852 is about 26188.7733962475. The cubic root of 685851852 is about 881.8812423339.

The spelling of 685851852 in words is "six hundred eighty-five million, eight hundred fifty-one thousand, eight hundred fifty-two".