686150328852 has 36 divisors (see below), whose sum is σ = 1749784551060. Its totient is φ = 226692732672.

The previous prime is 686150328847. The next prime is 686150328911. The reversal of 686150328852 is 258823051686.

686150328852 is a `hidden beast` number, since 6 + 8 + 6 + 1 + 503 + 2 + 88 + 52 = 666.

686150328852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 168950593296 + 517199735556 = 411036^2 + 719166^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84331027 + ... + 84339162.

Almost surely, 2^686150328852 is an apocalyptic number.

It is an amenable number.

686150328852 is an abundant number, since it is smaller than the sum of its proper divisors (1063634222208).

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

686150328852 is a wasteful number, since it uses less digits than its factorization.

686150328852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168670312 (or 168670307 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 686150328852 in words is "six hundred eighty-six billion, one hundred fifty million, three hundred twenty-eight thousand, eight hundred fifty-two".