206886028842 has 12 divisors (see below), whose sum is σ = 448253062530. Its totient is φ = 68962009608.

The previous prime is 206886028829. The next prime is 206886028849. The reversal of 206886028842 is 248820688602.

It is a happy number.

206886028842 is a `hidden beast` number, since 20 + 6 + 8 + 8 + 602 + 8 + 8 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 205054103241 + 1831925601 = 452829^2 + 42801^2 .

It is not an unprimeable number, because it can be changed into a prime (206886028849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5746834117 + ... + 5746834152.

Almost surely, 2^206886028842 is an apocalyptic number.

206886028842 is an abundant number, since it is smaller than the sum of its proper divisors (241367033688).

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

206886028842 is a wasteful number, since it uses less digits than its factorization.

206886028842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11493668277 (or 11493668274 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 54.

The spelling of 206886028842 in words is "two hundred six billion, eight hundred eighty-six million, twenty-eight thousand, eight hundred forty-two".