206962185728 has 20 divisors (see below), whose sum is σ = 413520149460. Its totient is φ = 103481092608.

The previous prime is 206962185679. The next prime is 206962185803. The reversal of 206962185728 is 827581269602.

It is a happy number.

It is a super-2 number, since 2×206962185728² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202110998 + ... + 202112021.

It is an arithmetic number, because the mean of its divisors is an integer number (20676007473).

Almost surely, 2^206962185728 is an apocalyptic number.

It is an amenable number.

206962185728 is a deficient number, since it is larger than the sum of its proper divisors (206557963732).

206962185728 is an frugal number, since it uses more digits than its factorization.

206962185728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404223037 (or 404223021 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 206962185728 in words is "two hundred six billion, nine hundred sixty-two million, one hundred eighty-five thousand, seven hundred twenty-eight".